Problems Visual Editor

Hey Folks, 

i´m new with Vaadin! Just started two weeks ago. 

I upgrade my Vaadin to Pro version to work with the Visual Editor tool. 
I´ve tryed to create a new project to work with the editor. 
New -  Vaadin7.
Than 
Right Click on th Project - new - othes - Vaadin - VaadinDesign --> next

After hit next, the wizard apears and i type in the Name ( Design und java locataion are allready filled in )

Than a Task open with a blank page, i click vaadin and in the right corner i see the Palette of Layouts or components.

But the page where i expect to drag an drop the Layouts or components shows only a loading wheel wich is loading the whole time. 

I would realy appreciate your help

thank you 

The Console shows

Mai 14, 2015 7:44:58 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNUNG: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:testProjek' did not find a matching property.
Mai 14, 2015 7:44:58 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNUNG: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:Ed4u' did not find a matching property.
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Server version:        Apache Tomcat/8.0.22
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Server built:          Apr 29 2015 11:46:15 UTC
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Server number:         8.0.22.0
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: OS Name:               Windows 7
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: OS Version:            6.1
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Architecture:          amd64
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Java Home:             C:\Program Files\Java\jre1.8.0_45
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: JVM Version:           1.8.0_45-b15
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: JVM Vendor:            Oracle Corporation
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: CATALINA_BASE:         C:\Users\alexander\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: CATALINA_HOME:         C:\Program Files\Tools\apache-tomcat-8.0.22
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Dcatalina.base=C:\Users\alexander\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Dcatalina.home=C:\Program Files\Tools\apache-tomcat-8.0.22
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Dwtp.deploy=C:\Users\alexander\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Djava.endorsed.dirs=C:\Program Files\Tools\apache-tomcat-8.0.22\endorsed
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Dfile.encoding=Cp1252
Mai 14, 2015 7:44:58 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFORMATION: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre1.8.0_45\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre1.8.0_45/bin/server;C:/Program Files/Java/jre1.8.0_45/bin;C:/Program Files/Java/jre1.8.0_45/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\AMD\ATI.ACE\Core-Static;C:\Program Files\Eclipse\eclipse;;.
Mai 14, 2015 7:44:58 PM org.apache.coyote.AbstractProtocol init
INFORMATION: Initializing ProtocolHandler ["http-nio-8080"]
Mai 14, 2015 7:44:58 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFORMATION: Using a shared selector for servlet write/read
Mai 14, 2015 7:44:58 PM org.apache.coyote.AbstractProtocol init
INFORMATION: Initializing ProtocolHandler ["ajp-nio-8009"]
Mai 14, 2015 7:44:58 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFORMATION: Using a shared selector for servlet write/read
Mai 14, 2015 7:44:58 PM org.apache.catalina.startup.Catalina load
INFORMATION: Initialization processed in 639 ms
Mai 14, 2015 7:44:58 PM org.apache.catalina.core.StandardService startInternal
INFORMATION: Starting service Catalina
Mai 14, 2015 7:44:58 PM org.apache.catalina.core.StandardEngine startInternal
INFORMATION: Starting Servlet Engine: Apache Tomcat/8.0.22
Mai 14, 2015 7:44:59 PM org.apache.jasper.servlet.TldScanner scanJars
INFORMATION: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Mai 14, 2015 7:44:59 PM org.apache.catalina.core.ApplicationContext log
INFORMATION: Initializing AtmosphereFramework
Mai 14, 2015 7:45:00 PM org.apache.jasper.servlet.TldScanner scanJars
INFORMATION: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Mai 14, 2015 7:45:00 PM org.apache.catalina.core.ApplicationContext log
INFORMATION: Initializing AtmosphereFramework
Mai 14, 2015 7:45:00 PM org.apache.coyote.AbstractProtocol start
INFORMATION: Starting ProtocolHandler ["http-nio-8080"]
Mai 14, 2015 7:45:00 PM org.apache.coyote.AbstractProtocol start
INFORMATION: Starting ProtocolHandler ["ajp-nio-8009"]
Mai 14, 2015 7:45:00 PM org.apache.catalina.startup.Catalina start
INFORMATION: Server startup in 2640 ms
Mai 14, 2015 7:45:01 PM com.vaadin.server.DefaultDeploymentConfiguration checkProductionMode
WARNUNG: 
=================================================================
Vaadin is running in DEBUG MODE.
Add productionMode=true to web.xml to disable debug features.
To show debug window, add ?debug to your application URL.
=================================================================
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework addAtmosphereHandler
INFORMATION: Installed AtmosphereHandler com.vaadin.server.communication.PushHandler$1 mapped to context-path: /*
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework addAtmosphereHandler
INFORMATION: Installed the following AtmosphereInterceptor mapped to AtmosphereHandler com.vaadin.server.communication.PushHandler$1
Mai 14, 2015 7:45:01 PM org.atmosphere.util.IOUtils readServiceFile
INFORMATION: META-INF/services/org.atmosphere.cpr.AtmosphereFramework not found in class loader
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework doInitParams
WARNUNG: SessionSupport error. Make sure you define org.atmosphere.cpr.SessionSupport as a listener in web.xml instead
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework autoConfigureService
INFORMATION: Atmosphere is using org.atmosphere.util.VoidAnnotationProcessor for processing annotation
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework autoDetectWebSocketHandler
INFORMATION: Auto detecting WebSocketHandler in /WEB-INF/classes/
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework initWebSocket
INFORMATION: Installed WebSocketProtocol org.atmosphere.websocket.protocol.SimpleHttpProtocol 
Mai 14, 2015 7:45:01 PM org.atmosphere.container.JSR356AsyncSupport <init>
INFORMATION: JSR 356 Mapping path /{path}
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework configureAtmosphereInterceptor
INFORMATION: Installing Default AtmosphereInterceptor
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework newAInterceptor
INFORMATION:     org.atmosphere.interceptor.CorsInterceptor : CORS Interceptor Support
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework newAInterceptor
INFORMATION:     org.atmosphere.interceptor.CacheHeadersInterceptor : Default Response's Headers Interceptor
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework newAInterceptor
INFORMATION:     org.atmosphere.interceptor.PaddingAtmosphereInterceptor : Browser Padding Interceptor Support
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework newAInterceptor
INFORMATION:     org.atmosphere.interceptor.AndroidAtmosphereInterceptor : Android Interceptor Support
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework configureAtmosphereInterceptor
INFORMATION: Dropping Interceptor org.atmosphere.interceptor.HeartbeatInterceptor
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework newAInterceptor
INFORMATION:     org.atmosphere.interceptor.SSEAtmosphereInterceptor : SSE Interceptor Support
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework newAInterceptor
INFORMATION:     org.atmosphere.interceptor.JSONPAtmosphereInterceptor : JSONP Interceptor Support
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework newAInterceptor
INFORMATION:     org.atmosphere.interceptor.JavaScriptProtocol : Atmosphere JavaScript Protocol
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework newAInterceptor
INFORMATION:     org.atmosphere.interceptor.WebSocketMessageSuspendInterceptor : org.atmosphere.interceptor.WebSocketMessageSuspendInterceptor
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework newAInterceptor
INFORMATION:     org.atmosphere.interceptor.OnDisconnectInterceptor : Browser disconnection detection
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework newAInterceptor
INFORMATION:     org.atmosphere.interceptor.IdleResourceInterceptor : org.atmosphere.interceptor.IdleResourceInterceptor
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework configureAtmosphereInterceptor
INFORMATION: Set org.atmosphere.cpr.AtmosphereInterceptor.disableDefaults to disable them.
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Using EndpointMapper class org.atmosphere.util.DefaultEndpointMapper
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Using BroadcasterCache: org.atmosphere.cache.UUIDBroadcasterCache
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Default Broadcaster Class: org.atmosphere.cpr.DefaultBroadcaster
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Broadcaster Polling Wait Time 100
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Shared ExecutorService supported: true
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Messaging Thread Pool Size: Unlimited
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Async I/O Thread Pool Size: 200
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Using BroadcasterFactory: org.atmosphere.cpr.DefaultBroadcasterFactory
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Using WebSocketProcessor: org.atmosphere.websocket.DefaultWebSocketProcessor
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Invoke AtmosphereInterceptor on WebSocket message true
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: HttpSession supported: true
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Atmosphere is using DefaultAtmosphereObjectFactory for dependency injection and object creation
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Atmosphere is using async support: org.atmosphere.container.JSR356AsyncSupport running under container: Apache Tomcat/8.0.22 using javax.servlet/3.0 and jsr356/WebSocket API
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework info
INFORMATION: Atmosphere Framework 2.2.4.vaadin5 started.
Mai 14, 2015 7:45:01 PM org.atmosphere.cpr.AtmosphereFramework interceptor
INFORMATION: Installed AtmosphereInterceptor  Track Message Size Interceptor using | with priority BEFORE_DEFAULT 
Mai 14, 2015 7:50:05 PM org.apache.catalina.core.StandardContext reload
INFORMATION: Reloading Context with name [/testProjek] has started
Mai 14, 2015 7:50:05 PM org.apache.catalina.session.StandardManager doUnload
SCHWERWIEGEND: IOException while saving persisted sessions: java.io.FileNotFoundException: C:\Users\alexander\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\work\Catalina\localhost\testProjek\SESSIONS.ser (Das System kann den angegebenen Pfad nicht finden)
java.io.FileNotFoundException: C:\Users\alexander\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\work\Catalina\localhost\testProjek\SESSIONS.ser (Das System kann den angegebenen Pfad nicht finden)
    at java.io.FileOutputStream.open0(Native Method)
    at java.io.FileOutputStream.open(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:354)
    at org.apache.catalina.session.StandardManager.unload(StandardManager.java:320)
    at org.apache.catalina.session.StandardManager.stopInternal(StandardManager.java:487)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5386)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
    at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3739)
    at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:292)
    at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:5528)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1378)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1382)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1382)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1350)
    at java.lang.Thread.run(Unknown Source)

Mai 14, 2015 7:50:05 PM org.apache.catalina.session.StandardManager stopInternal
SCHWERWIEGEND: Exception unloading sessions to persistent storage
java.io.FileNotFoundException: C:\Users\alexander\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\work\Catalina\localhost\testProjek\SESSIONS.ser (Das System kann den angegebenen Pfad nicht finden)
    at java.io.FileOutputStream.open0(Native Method)
    at java.io.FileOutputStream.open(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:354)
    at org.apache.catalina.session.StandardManager.unload(StandardManager.java:320)
    at org.apache.catalina.session.StandardManager.stopInternal(StandardManager.java:487)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5386)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
    at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3739)
    at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:292)
    at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:5528)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1378)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1382)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1382)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1350)
    at java.lang.Thread.run(Unknown Source)

Mai 14, 2015 7:50:05 PM com.vaadin.server.VaadinSession valueUnbound
WARNUNG: A VaadinSession instance not associated to any service is getting unbound. Session destroy events will not be fired and UIs in the session will not get detached. This might happen if a session is deserialized but never used before it expires.
Mai 14, 2015 7:50:05 PM org.apache.catalina.core.StandardContext reload
SCHWERWIEGEND: Exception starting Context with name [/testProjek]
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/testProjek]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3746)
    at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:292)
    at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:5528)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1378)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1382)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1382)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1350)
    at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@57ccfeed]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4845)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4975)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 8 more
Caused by: java.lang.IllegalArgumentException: The main resource set specified [C:\Users\alexander\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\testProjek] is not valid
    at org.apache.catalina.webresources.StandardRoot.createMainResourceSet(StandardRoot.java:723)
    at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:684)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 11 more

Mai 14, 2015 7:50:05 PM org.apache.catalina.core.StandardContext reload
INFORMATION: Reloading Context with name [/testProjek] is completed

Problem Fixed, by reading old posts!

It was the IE 8 , i installed IE11 and it works.