I have Google Compute Engine\'s Credentials file , renamed as key.json. The next step is to set the environment variable with name GOOGLE_APPLICATION_CREDENTIALS. But it say
This question is satisfiable by a reading of the documentation. As of Mar. 15, 2016:
The environment variable GOOGLE_APPLICATION_CREDENTIALS is checked. If this variable is specified it should point to a file that defines the credentials.
The documentation explains more about how you can create such a file.
As to how to set this in eclipse, it's an environment variable, and you should search the Eclipse documentation to see how to set environment variables for tasks you want to run.