# 'Package' depends on 'Dependency', but no such entry exists in the manifest

This seems to have become an issue randomly over the weekend. I try to activate an environment and am met with:

``````ERROR: `ModelingToolkit=961ee093-0014-501f-94e3-6117800e7a78` depends on `SafeTestsets`, but no such entry exists in the manifest.
``````

From the half-activated environment, I’ve tried doing

``````pkg> rm ModelingToolkit
``````

to uninstall and reinstall MTK, but the same error appears.

How can I reset this?

`\$ rm Manifest.toml` and `pkg> instantiate` the environment again? Or maybe keep a copy of `Manifest.toml` so you can restore the correct versions of the non-missing Manifest entries.

3 Likes

Cool, it seems to be running smoothly again!

1 Like