When i save a .proto file I receive the following exception. I've created the src-gen folder and the protobuf-dt is stetted-up like in the wiki tutorial.

java.lang.NullPointerException at com.google.eclipse.protobuf.ui.protoc.command.ProtocCommand.setFileToCompile(ProtocCommand.java:42) at com.google.eclipse.protobuf.ui.protoc.command.ProtocCommandBuilder.buildCommand(ProtocCommandBuilder.java:56) at com.google.eclipse.protobuf.ui.builder.protoc.ProtobufBuildParticipant.build(ProtobufBuildParticipant.java:60) at org.eclipse.xtext.builder.impl.RegistryBuilderParticipant.build(RegistryBuilderParticipant.java:60) at org.eclipse.xtext.builder.impl.XtextBuilder.doBuild(XtextBuilder.java:160) at org.eclipse.xtext.builder.impl.XtextBuilder.incrementalBuild(XtextBuilder.java:141) at org.eclipse.xtext.builder.impl.XtextBuilder.build(XtextBuilder.java:91) at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:728) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239) at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295) at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:351) at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:374) at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143) at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

Java and Eclipse Info:

eclipse.buildId=M20110909-1335 java.version=1.6.0_29 java.vendor=Apple Inc. BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=it_IT

What version of the proto editor are you using?

Thanks, -Alex

I can't reproduce this issue. Please provide steps to reproduce (or better yet, attach a project where this issue is reproducible.)

I've installed the eclipse plugin from http://protobuf-dt.googlecode.com/git/update-site I'm developing an OSGi plugin project. I've attached a simple OSGi plugin project that reproduces the issue.

Great!! thanks a lot.

I found the problem: IResource#getLocation does not like whitespace in the parent root folder. The interesting part: fixing it.

r48452a6cad7f

Proto editor will not throw NPEs when the path of file to compile has whitespace, but protoc may not be able to compile it. See http://code.google.com/p/protobuf/issues/detail?id=169

Thanks, I will pay attention to specify paths without white spaces to avoid further problems with protoc.