Failures with Jumpstart Deployments

[bradykelly]

I didn't know where else to ask this, I can't seem to place it in any category because I know so little, having only started on GCP yesterday. 

I have now tried two of the Jumpstart deployments: The Python and JavaScript Web App and the Three Tier Web App. I set off the deployment for the first one and went away, only to return now to be told there were errors, I must see the logs, and delete the deployment and try again. I hadn't found the logs yet so I just deleted that deployment and proceeded to try again, but with the simpler looking 3 Tier Web App solution.

On this second attempt I got exactly the same message about errors, but I was able to find the logs, and this one error entry:

Exception calling IAM: There were concurrent policy changes. Please retry the whole read-modify-write with exponential backoff

I have no idea what this means as the jumpstart deployments seem to be supposed to handle everything automatically. I was given no instructions to configure anything before deploying, only a message that some configuration would be done for me.