Based on your logs, it seems that you are trying to connect to Cloud SQL instance [izen-tech:asia-east1:myinstance] while trying to run locally. Were you able to start and run your local MySQL server as documented here [1]? Are you using local credentials?
[1] https://cloud.google.com/appengine/docs/standard/java/cloud-sql/#testing-dev-env -- 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 [email protected]. To post to this group, send email to [email protected]. 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/417fab79-d2fc-437b-b695-1af3b2fa04ab%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
