include transition does not produce correct prefixes

When I am using following line in my theme

@include transform (translate3d(0, 0, 0));
@include transition (transform .2s ease);

it produces following output

-webkit-transform: translate3d(0, 0, 0); -moz-transform: translate3d(0, 0, 0); -ms-transform: translate3d(0, 0, 0); -o-transform: translate3d(0, 0, 0); transform: translate3d(0, 0, 0); -webkit-transition: transform 0.2s ease; -moz-transition: transform 0.2s ease; transition: transform 0.2s ease; but it should be

-webkit-transition: -webkit-transform 0.2s ease;
-moz-transition: -moz-transform 0.2s ease;

And following line produces an error:

@include transition-property (transform);
07:52:55,169 SEVERE [com.vaadin.sass.internal.tree.controldirective.IfElseDefNode]
 (default task-57) null: com.vaadin.sass.internal.parser.ParseException: Function unquote must have exactly one single value parameter at line 17, column 10
    at com.vaadin.sass.internal.parser.function.AbstractSingleParameterFunctionGenerator.computeForArgumentList(AbstractSingleParameterFunctionGenerator.java:44) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.function.AbstractFunctionGenerator.compute(AbstractFunctionGenerator.java:72) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.evaluateFunctionsAndExpressions(LexicalUnitImpl.java:829) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.ReturnNode.evaluate(ReturnNode.java:64) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.ReturnNode.traverse(ReturnNode.java:45) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.TemporaryNode.traverse(TemporaryNode.java:71) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.IfElseNodeHandler.traverseChild(IfElseNodeHandler.java:66) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.IfElseNodeHandler.traverse(IfElseNodeHandler.java:45) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.IfElseDefNode.traverse(IfElseDefNode.java:49) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.FunctionCall.evaluate(FunctionCall.java:74) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.replaceCustomFunctions(LexicalUnitImpl.java:839) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.evaluateFunctionsAndExpressions(LexicalUnitImpl.java:821) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.ArgumentList.evaluateFunctionsAndExpressions(ArgumentList.java:79) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.ActualArgumentList.evaluateFunctionsAndExpressions(ActualArgumentList.java:166) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.evaluateFunctionsAndExpressions(LexicalUnitImpl.java:817) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.VariableNode.traverse(VariableNode.java:83) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.TemporaryNode.appendAndTraverse(TemporaryNode.java:61) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.LoopNodeHandler.iteration(LoopNodeHandler.java:61) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.LoopNodeHandler.replaceLoopNode(LoopNodeHandler.java:48) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.EachNodeHandler.traverse(EachNodeHandler.java:36) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.EachDefNode.traverse(EachDefNode.java:72) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.FunctionCall.evaluate(FunctionCall.java:74) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.replaceCustomFunctions(LexicalUnitImpl.java:839) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.evaluateFunctionsAndExpressions(LexicalUnitImpl.java:821) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.RuleNode.traverse(RuleNode.java:108) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.TemporaryNode.traverse(TemporaryNode.java:71) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixinNode(MixinNodeHandler.java:75) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixins(MixinNodeHandler.java:45) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.traverse(MixinNodeHandler.java:34) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.MixinNode.traverse(MixinNode.java:115) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.BlockNodeHandler.traverse(BlockNodeHandler.java:68) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.BlockNode.traverse(BlockNode.java:119) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.BlockNodeHandler.traverse(BlockNodeHandler.java:66) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.BlockNode.traverse(BlockNode.java:119) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.TemporaryNode.traverse(TemporaryNode.java:71) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixinNode(MixinNodeHandler.java:75) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixins(MixinNodeHandler.java:45) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.traverse(MixinNodeHandler.java:34) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.MixinNode.traverse(MixinNode.java:115) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.TemporaryNode.traverse(TemporaryNode.java:71) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixinNode(MixinNodeHandler.java:75) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixins(MixinNodeHandler.java:45) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.traverse(MixinNodeHandler.java:34) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.MixinNode.traverse(MixinNode.java:115) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.BlockNodeHandler.traverse(BlockNodeHandler.java:68) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.BlockNode.traverse(BlockNode.java:119) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.Node.traverseChildren(Node.java:213) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.Node.traverseChildren(Node.java:200) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.ScssStylesheet.traverse(ScssStylesheet.java:270) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.ScssStylesheet.compile(ScssStylesheet.java:239) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.server.VaadinServlet.compileScssOnTheFly(VaadinServlet.java:948) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.server.VaadinServlet.serveOnTheFlyCompiledScss(VaadinServlet.java:904) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.server.VaadinServlet.serveStaticResourcesInVAADIN(VaadinServlet.java:682) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.server.VaadinServlet.serveStaticResources(VaadinServlet.java:652) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:298) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.addon.touchkit.server.TouchKitServlet.service(TouchKitServlet.java:63) [vaadin-touchkit-cval-4.0.0.jar:4.0.0]

    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final]

    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.websockets.jsr.JsrWebSocketFilter.doFilter(JsrWebSocketFilter.java:129) [undertow-websockets-jsr-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:63) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletInitialHandler.jrHandle(ServletInitialHandler.java) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at org.zeroturnaround.javarebel.integration.servlet.undertow.cbp.ServletInitialHandlerCBP.handleRequest(ServletInitialHandlerCBP.java:76) [undertow-servlet-jr-plugin-6.0.2-SNAPSHOT.jar:]

    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:261) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_05]

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_05]

    at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_05]


07:52:55,175 SEVERE [com.vaadin.sass.internal.tree.FunctionCall]
 (default task-57) null: com.vaadin.sass.internal.parser.ParseException: Function transition-property-name did not return a value at line 8, column 33
    at com.vaadin.sass.internal.tree.FunctionCall.evaluate(FunctionCall.java:85) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.replaceCustomFunctions(LexicalUnitImpl.java:839) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.evaluateFunctionsAndExpressions(LexicalUnitImpl.java:821) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.ArgumentList.evaluateFunctionsAndExpressions(ArgumentList.java:79) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.ActualArgumentList.evaluateFunctionsAndExpressions(ActualArgumentList.java:166) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.evaluateFunctionsAndExpressions(LexicalUnitImpl.java:817) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.VariableNode.traverse(VariableNode.java:83) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.TemporaryNode.appendAndTraverse(TemporaryNode.java:61) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.LoopNodeHandler.iteration(LoopNodeHandler.java:61) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.LoopNodeHandler.replaceLoopNode(LoopNodeHandler.java:48) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.EachNodeHandler.traverse(EachNodeHandler.java:36) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.EachDefNode.traverse(EachDefNode.java:72) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.FunctionCall.evaluate(FunctionCall.java:74) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.replaceCustomFunctions(LexicalUnitImpl.java:839) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.evaluateFunctionsAndExpressions(LexicalUnitImpl.java:821) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.RuleNode.traverse(RuleNode.java:108) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.TemporaryNode.traverse(TemporaryNode.java:71) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixinNode(MixinNodeHandler.java:75) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixins(MixinNodeHandler.java:45) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.traverse(MixinNodeHandler.java:34) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.MixinNode.traverse(MixinNode.java:115) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.BlockNodeHandler.traverse(BlockNodeHandler.java:68) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.BlockNode.traverse(BlockNode.java:119) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.BlockNodeHandler.traverse(BlockNodeHandler.java:66) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.BlockNode.traverse(BlockNode.java:119) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.TemporaryNode.traverse(TemporaryNode.java:71) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixinNode(MixinNodeHandler.java:75) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixins(MixinNodeHandler.java:45) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.traverse(MixinNodeHandler.java:34) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.MixinNode.traverse(MixinNode.java:115) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.TemporaryNode.traverse(TemporaryNode.java:71) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixinNode(MixinNodeHandler.java:75) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixins(MixinNodeHandler.java:45) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.traverse(MixinNodeHandler.java:34) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.MixinNode.traverse(MixinNode.java:115) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.BlockNodeHandler.traverse(BlockNodeHandler.java:68) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.BlockNode.traverse(BlockNode.java:119) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.Node.traverseChildren(Node.java:213) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.Node.traverseChildren(Node.java:200) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.ScssStylesheet.traverse(ScssStylesheet.java:270) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.ScssStylesheet.compile(ScssStylesheet.java:239) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.server.VaadinServlet.compileScssOnTheFly(VaadinServlet.java:948) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.server.VaadinServlet.serveOnTheFlyCompiledScss(VaadinServlet.java:904) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.server.VaadinServlet.serveStaticResourcesInVAADIN(VaadinServlet.java:682) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.server.VaadinServlet.serveStaticResources(VaadinServlet.java:652) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:298) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.addon.touchkit.server.TouchKitServlet.service(TouchKitServlet.java:63) [vaadin-touchkit-cval-4.0.0.jar:4.0.0]

    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final]

    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.websockets.jsr.JsrWebSocketFilter.doFilter(JsrWebSocketFilter.java:129) [undertow-websockets-jsr-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:63) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletInitialHandler.jrHandle(ServletInitialHandler.java) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at org.zeroturnaround.javarebel.integration.servlet.undertow.cbp.ServletInitialHandlerCBP.handleRequest(ServletInitialHandlerCBP.java:76) [undertow-servlet-jr-plugin-6.0.2-SNAPSHOT.jar:]

    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:261) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_05]

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_05]

    at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_05]


07:52:55,179 SEVERE [com.vaadin.sass.internal.tree.MixinNode]
 (default task-57) null: com.vaadin.sass.internal.parser.ParseException: Function transition-property-names did not return a value at line 18, column 30
    at com.vaadin.sass.internal.tree.FunctionCall.evaluate(FunctionCall.java:85) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.replaceCustomFunctions(LexicalUnitImpl.java:839) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.parser.LexicalUnitImpl.evaluateFunctionsAndExpressions(LexicalUnitImpl.java:821) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.RuleNode.traverse(RuleNode.java:108) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.TemporaryNode.traverse(TemporaryNode.java:71) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixinNode(MixinNodeHandler.java:75) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixins(MixinNodeHandler.java:45) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.traverse(MixinNodeHandler.java:34) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.MixinNode.traverse(MixinNode.java:115) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.BlockNodeHandler.traverse(BlockNodeHandler.java:68) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.BlockNode.traverse(BlockNode.java:119) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.BlockNodeHandler.traverse(BlockNodeHandler.java:66) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.BlockNode.traverse(BlockNode.java:119) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.TemporaryNode.traverse(TemporaryNode.java:71) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixinNode(MixinNodeHandler.java:75) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixins(MixinNodeHandler.java:45) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.traverse(MixinNodeHandler.java:34) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.MixinNode.traverse(MixinNode.java:115) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.controldirective.TemporaryNode.traverse(TemporaryNode.java:71) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixinNode(MixinNodeHandler.java:75) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.replaceMixins(MixinNodeHandler.java:45) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.MixinNodeHandler.traverse(MixinNodeHandler.java:34) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.MixinNode.traverse(MixinNode.java:115) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.visitor.BlockNodeHandler.traverse(BlockNodeHandler.java:68) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.BlockNode.traverse(BlockNode.java:119) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.Node.traverseChildren(Node.java:213) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.tree.Node.traverseChildren(Node.java:200) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.ScssStylesheet.traverse(ScssStylesheet.java:270) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.sass.internal.ScssStylesheet.compile(ScssStylesheet.java:239) [vaadin-sass-compiler-0.9.10.jar:0.9.10]

    at com.vaadin.server.VaadinServlet.compileScssOnTheFly(VaadinServlet.java:948) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.server.VaadinServlet.serveOnTheFlyCompiledScss(VaadinServlet.java:904) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.server.VaadinServlet.serveStaticResourcesInVAADIN(VaadinServlet.java:682) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.server.VaadinServlet.serveStaticResources(VaadinServlet.java:652) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:298) [vaadin-server-7.3.7.jar:7.3.7]

    at com.vaadin.addon.touchkit.server.TouchKitServlet.service(TouchKitServlet.java:63) [vaadin-touchkit-cval-4.0.0.jar:4.0.0]

    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final]

    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.websockets.jsr.JsrWebSocketFilter.doFilter(JsrWebSocketFilter.java:129) [undertow-websockets-jsr-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:63) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletInitialHandler.jrHandle(ServletInitialHandler.java) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at org.zeroturnaround.javarebel.integration.servlet.undertow.cbp.ServletInitialHandlerCBP.handleRequest(ServletInitialHandlerCBP.java:76) [undertow-servlet-jr-plugin-6.0.2-SNAPSHOT.jar:]

    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:261) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_05]

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_05]

    at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_05]

Am I doing something wrong or is this a bug?
This happens with Vaadin 7.3.7.

Bug, probably: please file a ticket at dev.vaadin.com.

done

http://dev.vaadin.com/ticket/15484