https://community.gamedev.tv/t/meta-files-does-not-have-valid-guid/221013
.meta files does not have valid GUID
Hi everyone, after I installed the Sprite 2d package I suddenly have lots of errors saying The .meta file Assets/Packages/System.Reflection.Emit.ILGeneration.4.3.0/lib/netstandard1.3/System.Reflection.Emit.ILGeneration.dll.meta does not have a valid GUID a
community.gamedev.tv
https://discussions.unity.com/t/how-do-i-fix-this-error/823965