Petra Solutions is the name of the team project.
Removing this will delete all your code, work items, assemblies, everything! And he is not recovering.
If so, there is an opportunity in web access to do it now.
Or via the command line:
TFSDeleteProject /force /collection:https://mydomain.visualstudio.com/DefaultCollection "Petra Solutions"
If this is not the case, and you just want to delete the PetraERP_1 code folder, you need the tf delete command to delete the source code (this can be restored).
To use tf delete , you need to get a working copy of the code. You can perform a non-recursive check with the tf get command in the workspace, matching this path.
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