Configurations does not point to a valid bundle on disk!
Use Case
When installing ShotGrid Desktop for the first time, this error can be presented after a file path after opening a project.
How to fix
The Pipeline Configuration entity for the project is pointing to ...\ShotGrid\Configurations path to the config on Windows. This is likely not the correct path, so as a first step, ensure that path exists or correct it.
It’s also possible that you may be trying to access from a centralized set-up where you do not have access to that path location. In this case, switching to a distributed set-up will help.