The Dataflow worker relies on this dependency to be supplied as part of the users application. Are you sure the way you build/package your application hasn't changed in the past few days?
Note that the DataflowRunner has specified "google-api-services-clouddebugger" as a dependency[1]. The other issue could be that a dependency of CloudDebugger is incompatible. There is a known issue where "google-api-client" 1.22.0 is incompatible with 1.23.0 and hence all Google libraries that depend on "google-api-client" should use a set of dependencies that are consistent with using a single version of "google-api-client" (The DataflowRunner in Apache Beam uses 1.22.0). 1: https://mvnrepository.com/artifact/org.apache.beam/beam-runners-google-cloud-dataflow-java/2.4.0 On Wed, May 16, 2018 at 3:53 AM Frank Yellin <f...@fyellin.com> wrote: > Something just starting breaking on me in the last day or so. I have the > trivial program: > > public static void main(String[] args) { > PipelineOptions options = > PipelineOptionsFactory.fromArgs(args).create(); > Pipeline pipeline = Pipeline.create(options); > } > > > If I call it with no arguments, it quietly does nothing, as expected. If > I pass the argument > --runner=dataflowRunner > I get the error message > > Exception in thread "main" java.lang.NoClassDefFoundError: > com/google/api/services/clouddebugger/v2/CloudDebugger > > > I can't find any reference to v2/CloudDebugger and I do not know who is > including it or calling it. Has something changed in the last few days on > GCE? > > Help! > >
