For some reason, my Cursor stopped working correctly.
On my PC at home, Cursors Intellisense doesn’t work correctly anymore in my Unity Project(s). Yes, even in new Projects, it doesn’t work anymore.
When hovering over any Class (MonoBehaviour or my own classes), I get a “No Definition found for ‘MonoBehaviour’”
This is my HomePC Setup:
Version: 1.2.4 (user setup)
VSCode Version: 1.99.3
Commit: a8e95743c5268be73767c46944a71f4465d05c90
Date: 2025-07-10T17:09:01.383Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.26100
And this is my OfficePC Setup:
Version: 1.2.4 (user setup)
VSCode Version: 1.99.3
Commit: a8e95743c5268be73767c46944a71f4465d05c90
Date: 2025-07-10T17:09:01.383Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.19045
When Opening the Project in Cursor on my OfficePC, it shows me this in the Output Log:
visualstudiotoolsforunity.vstuc: Trying to install .NET 9.0.7~x64 but it already exists. No downloads or changes were made.
025-07-16 13:08:16.300 [info] Locating .NET runtime version 8.0.10
2025-07-16 13:08:16.858 [info] Dotnet path: C:\Program Files\dotnet\dotnet.exe
2025-07-16 13:08:16.858 [info] Activating C# + C# Dev Kit...
2025-07-16 13:08:17.703 [info] [stdout] {"pipeName":"\\\\.\\pipe\\90ebf437"}
2025-07-16 13:08:17.703 [info] received named pipe information from server
2025-07-16 13:08:17.703 [info] client has connected to server
2025-07-16 13:08:17.822 [info] [Info - 1:08:17 PM] [Program] Language server initialized
2025-07-16 13:08:22.277 [info] [Info - 1:08:22 PM] [WorkspaceProjectFactoryService] Project D:\Development\UnityProjects\Unity-CellenseresPS\Unity.Sysroot.Linux_x86_64.csproj loaded by C# Dev Kit
---A LOT OF OTHER FILES---
2025-07-16 13:08:25.346 [info] [Info - 1:08:25 PM] [WorkspaceProjectFactoryService] Project D:\Development\UnityProjects\Unity-CellenseresPS\Unity.TestTools.CodeCoverage.Editor.OpenCover.Model.csproj loaded by C# Dev Kit
While my PC at home only shows this:
2025-07-16 12:54:20.826 [info] Locating .NET runtime version 8.0.10
2025-07-16 12:54:22.123 [info] Dotnet path: C:\Program Files\dotnet\dotnet.exe
2025-07-16 12:54:22.123 [info] Activating C# + C# Dev Kit...
2025-07-16 12:54:22.751 [info] [stdout] {"pipeName":"\\\\.\\pipe\\cb1d6593"}
2025-07-16 12:54:22.751 [info] received named pipe information from server
2025-07-16 12:54:22.752 [info] client has connected to server
2025-07-16 12:54:22.906 [info] [Info - 12:54:22 PM] [Program] Language server initialized
After the Language Server initialization, nothing happens.
Any Idea how this can be fixed?
I’ve tried to reinstall Cursor and the Extensions.
I’ve also tried to restart the PC.
In Unity, the ProjectSettings and Preferences are exactly the same. Also regenerated the project files.