I am using the "Set Up a Virtual Cluster" instructions, revised on 11/25/2015. I am currently enrolled in ADM200. I am using a Windows 8.1 computer, and am attempting to set up a virtual cluster on the Google Cloud Platform. On page 5, instruction number 8,
8. After the installation completes, restart the Cygwin terminal by typing exit at the prompt and re-launching Cygwin. Enter the following command at the terminal prompt to authenticate:
gcloud auth login --no-launch-browser
The command will generate a link, and then wait for you to enter a verification code. Follow the instructions to authenticate.
I tried my project ID: hopeful-buckeye-123456 (#1234567890123), using the whole thing, just part outside of the parenthesis, and only the part within. Each time, I received the error message from the gcloud command:
ERROR: There was a problem with web authentication.
ERROR: (gcloud auth login) invalid grant
Also, the instructions do not seem to address the need to select and pay for a Google server instance, and then continue with the lab. My free trial is only 60 days. I hope to hear from someone who has "been there, done that".