Hi,
You may double check the steps you have taken for migrating to Endpoints Frameworks v2 for App Engine via this link <https://cloud.google.com/endpoints/docs/frameworks/java/migrating> and take a look at the common erratic behaviors <https://cloud.google.com/endpoints/docs/frameworks/java/migrating#troubleshooting> when migrating to Endpoints Frameworks 2.0 and suggested solutions. If the issue persists, I recommend that you follow the thread you have already created in Stack Overflow <https://stackoverflow.com/questions/50755042/google-app-engine-endpoint-sample-app-build-issue> since Google Groups are reserved for general Google Cloud Platform-end product discussions and not for technical questions. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/39d907ea-89c8-44df-92dc-d5a75f5e5dcb%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.