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Extension host terminated unexpectedly

Exact error

Extension host terminated unexpectedly.

What it means

Cursor is built on VS Code; this means the process that runs extensions crashed. Usually one extension is at fault.

Likely causes

• A misbehaving or incompatible extension.
• Running out of memory on very large workspaces.

How to fix it

1. Run "Developer: Restart Extension Host" from the Command Palette.

2. Start with extensions disabled to confirm:

   cursor --disable-extensions

3. Re-enable extensions one at a time (or use "Help: Start Extension Bisect") to find the culprit, then update or remove it.

Related errors

• cursor: command not found
• Cursor agent keeps making the same failed edit