Problem executing the demo

[aminabs]

Hi there,
Thanks for your great design!
I've faced a runtime exception while trying to launch the demo application. The issue is that the server is looking for a file at some point inside the demo project's webapp directory whereas the file seems to be somewhere under the webapp directory of the addon project. The following shows the details about the exception. Thanks in advance for any later help:

WARNING: Error persisting scss cache {MY-LOCAL-PROJECT-DIR}\vaadin-material-design\material-design-demo\src\main\webapp\VAADIN\themes\md-light\styles.scss.cache java.io.FileNotFoundException: {MY-LOCAL-PROJECT-DIR}\vaadin-material-design\material-design-demo\src\main\webapp\VAADIN\themes\md-light\styles.scss.cache (The system cannot find the path specified) at java.io.FileOutputStream.open0(Native Method) at java.io.FileOutputStream.open(FileOutputStream.java:270) at java.io.FileOutputStream.<init>(FileOutputStream.java:213) at com.google.gwt.thirdparty.guava.common.io.Files$FileByteSink.openStream(Files.java:201) at com.google.gwt.thirdparty.guava.common.io.Files$FileByteSink.openStream(Files.java:189) at com.google.gwt.thirdparty.guava.common.io.ByteSink$AsCharSink.openStream(ByteSink.java:163) at com.google.gwt.thirdparty.guava.common.io.CharSink.write(CharSink.java:110) at com.google.gwt.thirdparty.guava.common.io.Files.write(Files.java:477) at com.vaadin.server.VaadinServlet.persistCacheEntry(VaadinServlet.java:1304) at com.vaadin.server.VaadinServlet.serveOnTheFlyCompiledScss(VaadinServlet.java:966) at com.vaadin.server.VaadinServlet.serveStaticResourcesInVAADIN(VaadinServlet.java:734) at com.vaadin.server.VaadinServlet.serveStaticResources(VaadinServlet.java:699) at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:343) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:835) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1685) at org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:225) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1668) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1158) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1090) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:109) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:119) at org.eclipse.jetty.server.Server.handle(Server.java:517) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:242) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95) at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:75) at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:213) at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:147) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572) at java.lang.Thread.run(Thread.java:745)

[marlonrichert]

Sorry, I have no idea what that is about. (Also, I am not actively maintaining this project at the moment.)