VS 2022 can't start because it can't find files : System.Net.Http,

Question

Hello, I can't launch VS 2022 because of an error :
"Impossible to start Visual studio because of an error. System.IO.FileNotFoundException : Impossible to load the file or the assembly ‘System.Net.Http, Version = 4.0.0.0, Culture = neutral, PublicKeyToken=b03f6f7f11d50a3a’ or one of the dependencies. The file specified is unfindable. InnerException - System.IO.FileNotFoundException: Impossible to load the file or the assembly ‘System.Net.Http,Version=4.2.0.0, Culture=neutral, PublicKeyToken = B03f5f7f11d50a3a’ or one of the dependencies. The file specified is unfindable."

I already tried uninstalling, reinstalling, reparing, launching in administrator mode, "devenv /SafeMode", renaming "System.Net.Http.Formating.dll" does not work.
The only thing that worked is "devenv /ResetSettings" but VS close automatically after 5s, (but buttons works).
"System.Net.Http.Formating.dll" in Depency walker gives a lot of errors :
Error: At least one required implicit or forwarded dependency was not found.
Error: Modules with different CPU types were found.
Warning: At least one delay-load dependency module was not found.
Warning: At least one module has an unresolved import due to a missing export function in a delay-load dependent module.

(There is a lot of files missing)

Answer 1

Hello @huhu123,

Welcome to Microsoft Q&A forum.

Please try following:

1. Rename this folder(ComponentModelCache) to ComponentModelCache_backup: C:\Users\username\AppData\Local\Microsoft\VisualStudio\17.0_xxxxxxxx\ComponentModelCache, run the devenv /ResetSettings command again, start VS, see if the error disappears.
2. Update Windows OS, and make sure that all patches have been installed.
3. Run CMD as admin, run DISM.exe /Online /Cleanup-image /Restorehealth and sfc /scannow commands.
4. Reboot your machine, rename %temp% folder and %localappdata%\Microsoft\VisualStudio folder then relaunch VS.

Sincerely,

Tianyu

---

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.