Couldn't deploy GAE (Google App Engine) application (Java SDK)

Question

I was trying this quick start but I couldn't deploy the app. I made Google Cloud Platform account, cloud platform project and app engine application. I used mvn appengine:update command.

Result was

[INFO] Running -A masas-first-project -V masas-first-project1 --oauth2 update /home/masa/Code/googleAppEngine/java-docs-samples/appengine/helloworld/target/appengine-helloworld-1.0-SNAPSHOT
The following URL can be used to authenticate:
  https://accounts.google.com/o/oauth2/auth?access_type=offline&approval_prompt=force&client_id=550516889912.apps.googleusercontent.com&redirect_uri=urn:ietf:wg:oauth:2.0:oob&response_type=code&scope=https://www.googleapis.com/auth/appengine.admin%20https://www.googleapis.com/auth/cloud-platform
Attempting to open it in your browser now.

And it was like I don't know where to paste code

Answer 1

You have to paste that code into your terminal in order to authenticate.

Answer 2

At last could deploy...

By using command "gcloud app create". Maybe I made gcp project, but not gcloud app yet.

First I went along with Japanese quick start but I tried English one next. cloud.google.com/appengine/docs/standard/java/quickstart

And I got same similar error but I read error message of maven

mvn appengine:deplpy 
ERROR: (gcloud.app.deploy) The current Google Cloud project [testproject-218805] does not contain an App Engine application. Use gcloud app create to initialize an App Engine application within the project.

Here is another good resource... github.com/GoogleCloudPlatform/getting-started-java/issues/371 Thanks LOL.

By the way I wrote about this at my weblog. But in Japanese.. I have also English contents. Visit https://lavilleeternelle.wordpress.com/2018/10/08/gae-google-app-engine%e3%81%a7%e9%81%8a%e3%81%b6/