Cannot perform upm operation: Cannot read property 'map' of undefined [NotFound].See console for more details
Hello, I have a problem, but when I want to refresh the packpage manager in unity, I have an error and how to fix it. I tried to reset the packpage manager but it doesn't help. help
type error: Cannot perform upm operation: Cannot read property 'map' of undefined [NotFound].See console for more details
[PackageManager] Error Cannot read property 'map' of undefined
Answer by PawelGruntowski · Aug 17, 2021 at 07:33 AM
try update test framework or remove and add again
Updating the framework didn't worked for me. But removing and adding it again worked. Thank you!
Answer by mrtrizer · Jun 29, 2021 at 10:14 AM
Same problem. Error message says nothing useful.
Cannot perform upm operation: Cannot read property 'map' of undefined [NotFound]
UnityEditor.EditorApplication:Internal_CallUpdateFunctions()
Error searching for packages.
UnityEditor.EditorApplication:Internal_CallUpdateFunctions()
Answer by honor0102 · Mar 01 at 04:07 PM
Update:
first, try removing and adding Test framework
package (mentioned by PawelGruntowski in this topic) and if it didn't help:
I had this problem for any imported project on Unity 2019.4.10f1 and the best solution I found was upgrading the project to another version.
I used Unity 2020.20.7f1 and now the package manager is working properly on the same project This may be a bug in some of unity 2019 subversions.
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