Google App Engine Cloud Endpoints Pr@blem Marker - > Generate App Engine Error on clean Android Project

Question

I created a clean Android Application A then I right clicked on it and selected Google->Generate App Engine That caused this:

and the error description is that:

Description Resource    Path    Location    Type
There was a problem generating the API metadata for your Cloud Endpoints classes: com.google.api.server.spi.tools.ClientLibGenerator$Language   A-AppEngine     Unknown Google App Engine Cloud Endpoints Problem Marker

How to fix this?

Answer 1

After checking out a lot of posts I finally fixed this error, though I have no clue why it is happening:

• Right click on the project
• Properties-->Builders
• Uncheck the Google App Engine Project Validator.
• Then clean the project.
• Then check the Google App Engine Project Validator again.
• Then left click the project,
• Go to Project-->Build Project.
• Done.

Anyone can explain this?