I found I am unable to deploy to GAE with the following error. The GAE instance that I am going to deploy is a billing enabled and I am still within my daily budge. Please help to resolve this issue since I need to deploy a very important server update today.
500 Internal Server Error
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<title>500 Server Error</title>
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<h1>Error: Server Error</h1>
<h2>The server encountered an error and could not complete your request.<p>If the problem persists, please <A HREF="
http://code.google.com/appengine/community.html">report</A> your problem and mention this error message and the query that caused it.</h2>
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at com.google.appengine.tools.admin.AbstractServerConnection.send1(AbstractServerConnection.java:285)
at com.google.appengine.tools.admin.AbstractServerConnection.send(AbstractServerConnection.java:245)
at com.google.appengine.tools.admin.AppVersionUpload.send(AppVersionUpload.java:606)
at com.google.appengine.tools.admin.AppVersionUpload.cloneFiles(AppVersionUpload.java:470)
at com.google.appengine.tools.admin.AppVersionUpload.beginTransaction(AppVersionUpload.java:430)
at com.google.appengine.tools.admin.AppVersionUpload.doUpload(AppVersionUpload.java:122)
at com.google.appengine.tools.admin.AppAdminImpl.doUpdate(AppAdminImpl.java:328)
at com.google.appengine.tools.admin.AppAdminImpl.update(AppAdminImpl.java:52)
at com.google.appengine.eclipse.core.proxy.AppEngineBridgeImpl.deploy(AppEngineBridgeImpl.java:400)
at com.google.appengine.eclipse.core.deploy.DeployProjectJob.runInWorkspace(DeployProjectJob.java:148)
at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)