Hi, I'm facing similar problem. Migrating from gwt-2.4.0 to gwt-2.8.2 along with jdk1.6 migration to jdk1.8.
I've added the gwt-dev-2.8.2 dependency to the classpath/refid to the below construct, but the issue still persists. <java fork="true" classname="com.google.gwt.dev.Compiler" failonerror="true"> <jvmarg value="-Xmx1500M" /> <arg value="-logLevel" /><arg value="DEBUG" /> <arg value="-war" /><arg value="build/site" /> <arg value="-gen" /><arg value="build/transient" /> <arg line="${gwt.args}" /> <arg value="com.xsoft.Vas" /> <classpath refid="my-comm-client.classpath" /> </java> This is a part of the error message: [java] Loading inherited module 'com.google.gwt.http.HTTP' [java] Module location: jar:file:/C:/SOV/workspace/SOV/_libraries/gwt-2.8.2/gwt-user.jar!/com/google/gwt/http/HTTP.gwt.xml [java] Loading inherited module 'com.google.gwt.user.Timer' [java] Module location: jar:file:/C:/SOV/workspace/SOV/_libraries/gwt-2.8.2/gwt-user.jar!/com/google/gwt/user/Timer.gwt.xml [java] [ERROR] Line 19: Unexpected exception while processing element 'source' [java] java.lang.NoClassDefFoundError: org/apache/tools/ant/types/ZipScanner [java] at com.google.gwt.dev.resource.impl.DefaultFilters.getScanner(DefaultFilters.java:240) Thanks, Michal Dňa pondelok, 1. augusta 2016 20:21:52 UTC+2 Thomas Broyer napísal(a): > > I actually meant the ant dependency with the test scope, but actually gwt > uses a different ant dependency. But it really looks like a bug in IntelliJ > now that we unbundled most dependencies from Maven artifacts. -- You received this message because you are subscribed to the Google Groups "GWT Contributors" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit-contributors+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-web-toolkit-contributors/efb8c071-1f4b-46e3-986c-b171a5ef8025%40googlegroups.com.