Exception whit the GWT 2.7

Hello,

I work with Eclipse Luna and I installed the GWT plugin.

When I want use the GWT Designer with the GWT SDK 2.5.1, it's fine.

Now, I want use the GWT Designer with the GWT SDK 2.6 or 2.7 and I can't. When I launch the designer, the following exception :

Internal Error

 encountered unexpected internal error.

This could be caused by a bug or by a misconfiguration issue, conflict, partial update, etc.

java.lang.NoSuchMethodError: com.google.gwt.dev.cfg.ModuleDefLoader.loadFromClassPath(Lcom/google/gwt/core/ext/TreeLogger;Ljava/lang/String;Z)Lcom/google/gwt/dev/cfg/ModuleDef;
Show stack trace.

 

Stack trace:java.lang.NoSuchMethodError: com.google.gwt.dev.cfg.ModuleDefLoader.loadFromClassPath(Lcom/google/gwt/core/ext/TreeLogger;Ljava/lang/String;Z)Lcom/google/gwt/dev/cfg/ModuleDef;
 at com.google.gwt.dev.shell.designtime.HostedModeSupportImpl.loadModule(HostedModeSupportImpl.java:85)

  

I'm seeking for some days but I still can't use the 2.7.0 SDK version.

Can you explain me why ?

Thanks.

See you soon.

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