I faced the same problem after a git pull. I had to manually merge files and noticed inside the solution file the following patterns:
<<<<<<< HEAD

201f89307eb1001xxxx
I removed these from the sun file and now have to merge the code containing files too.

This helped me to get my solution loaded again.

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Hi @JulesMoorhouse!

Can you provide steps to reproduce the error?

I can't reproduce it on my machine.

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I just opened the solution.

Are you using visual studio for Mac?

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I'm happy to give you anything additional you need to help fix this.
Thanks.

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Closing this until more information provided for reproduction

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@brminnick
Given os is macos
and processor architecture is ARM
and godot version is 4.0.2+
When a new project is created via godot
and a script from that project is open with Visual Studio for mac
Then the solution fails to load
and error message is "Login failed: Unknown solution item type"

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