There is an related issue on github - https://github.com/gwt-plugins/gwt-eclipse-plugin/issues/365. Also, https://github.com/gwt-plugins/gwt-eclipse-plugin/issues/364 contains some additional info.
On Thursday, October 12, 2017 at 12:35:29 AM UTC+3, Oleg Cohen wrote: > > Greetings, > > I am wondering if anybody else ran into an error like this: > > > *java.lang.NoSuchMethodError: > org.eclipse.jdt.internal.core.JavaProject.computePackageFragmentRoots(Lorg/eclipse/jdt/core/IClasspathEntry;Lorg/eclipse/jdt/internal/compiler/util/ObjectVector;Ljava/util/HashSet;Lorg/eclipse/jdt/core/IClasspathEntry;ZLjava/util/Map;)V* > after upgrading to the most recent Eclipse Oxygen 1.a > > I am having problems editing GWT properties of a project and also > compiling my GWT application project as the GWT Project Validator fails > with the above error. > > Thanks! > Oleg > -- You received this message because you are subscribed to the Google Groups "GWT Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
