Element with id is already registered

[ThaDaVos]

Describe the bug A clear and concise description of what the bug is. It used to occur sometimes (Mostly after adding nuget packages) but now I can't even view my project - it keeps showing an error message with Element with id {INSERT_ID} is already registered and it won't unfold the project.

Sometimes I can get it working by folding/unfolding and using the refresh button multiple times

To Reproduce Steps to reproduce the behavior:

1. Go to solution explorerer
2. Click on try to unfold your project
3. See error

Expected behavior A clear and concise description of what you expected to happen. Unfolds the project

Screenshots If applicable, add screenshots to help explain your problem.

Environment (please complete the following information):

• OS: [e.g. iOS] Windows 11
• Version [e.g. 22] ?
• vscode version [e.g. 1.42] 1.80.2

Additional context Add any other context about the problem here.

[Yannis-S-Standaert]

I have the same issue (using cursor ai, an ide based on vs code)

[fernandoescolar]

Duplicated #274