I’m having the same issues as this post, but the suggestions in this thread doesn’t solve it for me :-(
https://ja.esotericsoftware.com/forum/d/17099-keep-getting-shader-errors-when-opening-unity/3
Basically Unity is spitting a bunch of errors when importing the URP Shaders UPM package. It says: Couldn't open include file 'Packages/com.esotericsoftware.spine.spine-unity/Runtime/spine-unity/Shaders/CGIncludes/Spine-Skeleton-Tint-Common.cginc’… I followed all instructions, (clicking the + icon, pressin “Add packages from disk…” etc). But nothing works. Using fresh version of Unity (2022.3.1f1), macOS Ventura.
I tried without success:
- Deleting the Library directory and re-import everthing, errors still show up.
- I deleted the com.esotericsoftware.spine.urp-shaders… in Packages, and re-installed like the instructions
- I tried all above again but with Dropbox and Rider closed, some people were reporting it could mess up importing files
- Right clicking the folder and pressing “Reimport” will spit [Worker0] Import Error Code
4)
- Message: Build asset version error: packages/com.esotericsoftware.spine.urp-shaders/shaders/2d/spine-sprite-urp-2d.shader in SourceAssetDB has modification time of '2023-06-01T16:19:34Z' while content on disk has modification time of '0001-01-01T00:00:00Z'
- I tried removing the “manifest.json” in the Packages folder, and then adding it back.