Waiting for extension host

Support Bug Reports
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5

Hey, this is a known issue. The team is aware, and we’re tracking it. A few things to try:

  1. Open a new Agent window Cmd/Ctrl+Shift+P > Open New Agent Window instead of the regular chat. For some users, this unblocked things right away.

  2. Clear the extensions cache. On Windows, delete these folders:

%APPDATA%\Cursor\CachedExtensions
%APPDATA%\Cursor\CachedExtensionVSIXs

Then restart Cursor.

  1. If that doesn’t help, try running from a terminal:
cursor --disable-extensions

If it works like this, one of your extensions is causing the issue.

  1. More drastic option: rename %APPDATA%\Cursor to Cursor_backup and start Cursor again. This resets all settings, but your data will still be in the backup.

About the missing .ipynb file, can you check if it’s still in your project folder? Sometimes the file isn’t deleted, it just doesn’t show up. Also check your git history if the project is under version control.

Let me know if any of this helps.