Downgrading to 11.0.2 wasn’t enough. I had to manually remove the old version
After downgrading to 11.0.2, formatting still didn’t work for me. The issue was that both versions of the extension were installed.
Here’s what fixed it:
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Close Cursor completely (Cmd + Q on Mac)
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Open a terminal (not Cursor’s terminal) and check for duplicate Prettier extensions:
ls ~/.cursor/extensions/ | grep prettier -
I saw two versions installed:
esbenp.prettier-vscode-11.0.2-universal esbenp.prettier-vscode-12.1.1-universalManually remove the broken v12 version:
rm -rf ~/.cursor/extensions/esbenp.prettier-vscode-12.1.1-universalVerify only v11.0.2 remains:
ls ~/.cursor/extensions/ | grep prettier# Should show only:
esbenp.prettier-vscode-11.0.2-universal -
Restart Cursor and reload window (Cmd + Shift + P → “Developer: Reload Window”)
Format on save works again!