What folder to point to deploy in google app engine?

When pointing content folder its always showing error and deployment is failing. When tried copying theme into current folder and pointed current folder, once uploaded successfully. But later when ghost verison is 5.13.0 and pointed to current folder, can’t deploy in app engine.

Following errors/ warnings coming–
Step #1: [1/5] Validating package.json…
Step #1: warning ghost@5.13.0: The engine “cli” appears to be invalid.
Step #1: [2/5] Resolving packages…

Step #1: npm WARN deprecated source-map-url@0.4.1: See GitHub - lydell/source-map-url: [DEPRECATED] Tools for working with sourceMappingURL comments.
Step #1: npm ERR! code ENOENT
Step #1: npm ERR! syscall stat
Step #1: npm ERR! path /app/components/tryghost-adapter-manager-0.0.0.tgz
Step #1: npm ERR! errno -2
Step #1: npm ERR! enoent ENOENT: no such file or directory, stat ‘/app/components/tryghost-adapter-manager-0.0.0.tgz’
Step #1: npm ERR! enoent This is related to npm not being able to find a file.
Step #1: npm ERR! enoent