productionMode=true not working

Hi am using Vaadin 7.6.5 version

when i set productionMode=true in web.xml

i am getting the following error

Apr 30, 2016 12:36:08 PM com.vaadin.server.VaadinServlet serveOnTheFlyCompiledScss
INFO: Request for /VAADIN/themes/vegatheme/styles.css not handled by sass compiler while in production mode

Here is my
web.xml

Vaadin production mode productionMode true

My
pom.xml
is

As i understood from the documents in below link
https://vaadin.com/docs/-/part/framework/themes/themes-compiling.html

org.apache.maven.plugins maven-jar-plugin ${maven-jar-plugin-version} jar org.apache.maven.plugins maven-compiler-plugin 1.8 1.8 com.vaadin vaadin-maven-plugin ${vaadin.plugin.version} -Xmx512M -Xss1024k ${basedir}/target/classes/VAADIN/widgetsets false false OBF true update-theme update-widgetset compile compile-theme ${outputDirec}/dist
    <pluginManagement>
        <plugins>
            <!--This plugin's configuration is used to store Eclipse m2e settings 
                only. It has no influence on the Maven build itself. -->
            <!-- TODO Remove when http://dev.vaadin.com/ticket/14924 is resolved -->
            <plugin>
                <groupId>org.eclipse.m2e</groupId>
                <artifactId>lifecycle-mapping</artifactId>
                <version>1.0.0</version>
                <configuration>
                    <lifecycleMappingMetadata>
                        <pluginExecutions>
                            <pluginExecution>
                                <pluginExecutionFilter>
                                    <groupId>com.vaadin</groupId>
                                    <artifactId>
                                        vaadin-maven-plugin
                                    </artifactId>
                                    <versionRange>[7.1.11,)</versionRange>
                                    <goals>
                                        <goal>update-theme</goal>
                                        <goal>resources</goal>
                                        <goal>update-widgetset</goal>
                                        <goal>compile</goal>
                                        <goal>compile-theme</goal>
                                    </goals>
                                </pluginExecutionFilter>
                                <action>
                                    <ignore></ignore>
                                </action>
                            </pluginExecution>
                        </pluginExecutions>
                    </lifecycleMappingMetadata>
                </configuration>
            </plugin>
        </plugins>P
    </pluginManagement>
</build>

where i am missing

Thanks
Nagaraj RC

The theme is compiled on the fly in “development mode”, but in “production mode” you need to compile your SASS theme.
Check this thread
.