Hi @Yaco Ibars ,
Welcome to Microsoft Q&A!
Are you using VS2022? Please update it to the latest version.
Please try to launch your Visual Studio in Safe Mode (run devenv /SafeMode in Developer Command Prompt for VS 2022).
Then, click on File > Open > Project/Solution > go to the project folder > double-click on the xxxx.sln > check that the solution loads properly,
Besides, did you remember what actions you took before it occurred?
Sincerely,
Anna
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