Upgrading from 4.3.18 to 5.4.6 causes missing scripts on Prefabs

General
1
  • A* version: 5.4.6
  • Unity version:2022.3.62f3

When I upgraded to 5.4.6 from 4.3.18, I had RVOController, Seeker, and AI Destination components on my enemies. Now, it shows all those scripts as missing on my enemy prefabs.

My previous 4.3.18 version was under the Assets folder but this new version is under Packages. Not sure if this has anything to do with it. I don’t use any custom assemblies. Why would these scripts not be recognized? I cannot add them manually either using the Add Component button in the inspector. They do not show up in the list of components I can add

2

If you have not already, completely remove the package and all associated files then reimport. For good measure I’d even restart the editor between removal and readding.