Why I do not see some of my custom activity packages in Mange Packages?
Issue: A custom package is imported into a project. When you search for activities from the imported package, then no activities appear in the Activities panel. Also, it may work fine on one machine and not on another.
Resolution/Troubleshooting Steps:
1. Compare the working Studio version with the non-working Studio machine. The rule of thumb is this, to be in the same version as the working one, or the non-working one to be in a higher version than the working one.
2. Check whether projects are created in Windows-Legacy or Windows compatibilities. It may be that your impacted library activities are not compatible with your process compatibility. In that case, either you are migrating the library to your actual process, republishing it, or you are using a process with library compatibility.
3. Check the path and version of the custom package from where it is uploaded into the Project. From the Custom folder or Orchestrator. If is not already uploaded into Orchestrator follow the steps to upload to Orchestrator .Then remove the package from the project dependencies and import again from Orchestrator.
4. Check this KB Custom Activity Package Not Available In Package Manager When Using Orchestrator Feed
5. Close any UiPath Studio or UiPath Assistant processes from Task Manager. Try to delete the already installed library package(s) folder from C:\Users\impacted_robot_username\.nuget\packages\your_impacted_library and retry to reinstall the impacted package from UiPath Studio -> Process -> Manage Packages.
Note: In case your package installation path is in a different location, delete it from that location.