I solved the issue by building the react app first (npm run build) and adding handlers for the built app in app.yaml.
handlers: - url: / static_files: build/index.html upload: build/index.html - url: / static_dir: build -- 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/3a6c58ce-1e62-4214-94b3-49284010ecb1%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
