I think you may have two libraries on the classpath. Regarding Eclipse, it is ready.
Find the download that will work with mars and GWT 2.8. http://gwt-plugins.github.io/documentation/gwt-eclipse-plugin/Download.html On Tue, Dec 8, 2015 at 8:52 AM, Pedro Lamarão <[email protected]> wrote: > Em sexta-feira, 4 de dezembro de 2015 07:51:13 UTC-2, Daniel Kurka > escreveu: > > >> Please start testing and let us know about any issues you encounter by >> either discussion here or filing bugs on github >> <https://github.com/gwtproject/gwt/issues/new>. >> > > > Is it ready for use with Google Plugin for Eclipse? > I added it as a new SDK and retargeted my projects -- in the build path, > in the compiler path for annotations. > A build with the GWT compilers ends with: > > [ERROR] Unexpected internal compiler error > java.lang.NoSuchMethodError: > com.google.gwt.util.tools.shared.Md5Utils.getMd5Digest(Ljava/lang/String;)[B > at > com.google.gwt.dev.util.CompilerVersion.getHash(CompilerVersion.java:42) > at > com.google.gwt.dev.javac.PersistentUnitCacheDir.<clinit>(PersistentUnitCacheDir.java:53) > at > com.google.gwt.dev.javac.PersistentUnitCache$BackgroundService.<init>(PersistentUnitCache.java:275) > at > com.google.gwt.dev.javac.PersistentUnitCache.<init>(PersistentUnitCache.java:104) > at > com.google.gwt.dev.javac.UnitCacheSingleton.get(UnitCacheSingleton.java:98) > at com.google.gwt.dev.Compiler.getOrCreateUnitCache(Compiler.java:89) > at com.google.gwt.dev.Compiler.run(Compiler.java:183) > at com.google.gwt.dev.Compiler.run(Compiler.java:156) > at com.google.gwt.dev.Compiler$1.run(Compiler.java:117) > at > com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55) > at > com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50) > at com.google.gwt.dev.Compiler.main(Compiler.java:124) > > P. > > -- > 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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/google-web-toolkit-contributors/77dac21c-66d7-43ed-8b50-88f78de5eda7%40googlegroups.com > <https://groups.google.com/d/msgid/google-web-toolkit-contributors/77dac21c-66d7-43ed-8b50-88f78de5eda7%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- *Brandon Donnelson* / GXT Support Engineer -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/google-web-toolkit-contributors/CAA_mbNNxC%3Dhxr%2BzO_adCT7YgJ-dmOzGyYN7-TXA9mTxuv9cCBA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
