Cursor Composer/Agent not working on macOS ARM64 - spawn Unknown system error -86 / No first token received

[Colin]

Hey @rupashri

Could you try the workaround steps here?

Cursor 3.7.27 Agent Broken on macOS 27 Beta (Darwin 27) cursor-retrieval spawn failed: Unknown system error -86

yeap, Try these steps in order: Install Rosetta 2 (most common fix): Open Terminal and run: softwareupdate --install-rosetta Then restart Cursor. Remove quarantine attributes: Fully quit Cursor and run: xattr -cr /Applications/Cursor.app Then relaunch. Disable Instant Grep indexing: Cursor Settings > Indexing & Docs > turn off “Index Repositories for Instant Grep (BETA)”, then restart Cursor. The -86 errors often originate from the retrieval extension this feature uses, which mat…

I do think we might have a bug on our hands, would like to have a second confirmation that this fixes the issue!