fatal: ambiguous argument 9ace34dc: unknown revision or path not in the working tree. -- Free Cloud Deployment

Hello,   I am trying to deploy my app to the free cloud but for some reason it fails with this error message. Thank you, Marcian.
1 answers

This is a known issue with deploying free apps hosted on Git repositories. It is being worked on. 

It does not happen on all Git-hosted apps (/revisions), therefore you would not run into this for every revision/commit you made. 

A workaround is to deploy through Mendix Studio (click "Publish").