I'm running Eclipse Juno / WIndows 7 / Java jdk1.7.0_21 / GWT - 2.5.1 / App Engine 1.7.7 and I'm getting the "Invocation of com.google.gwt.user.tools.WebAppCreator failed" error message. A quick browse offered up 3 solutions as below, each of which I have tried to no avail.
1. Remove classpath - I don't have a classpath set
2. Add gwt-dev.jar & gwt-user.jar to classpath - tried this but it made no difference.
3. Workspace folder is read-only - opened up all permissions, but still no difference.
As expected from a quick read of the error message, removing GWT from the equation solves the problem, but I want GWT!
Also, unclicking "Generate sample code" solves the problem, but it leaves me with concerns that I'm going to come up against other problems down the road if this isn't configured properly.
Is there a solution to this, or should I just try and revert to the old versions of Eclipse, GWT etc., that I know (used) to work?
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