Cursor Not Working? Troubleshooting Guide (2026)

Quick Fix: Most issues are solved by clearing cache, checking your subscription, or reconnecting your account. Try these fixes in order.

Fix #1: Cursor not connecting to AI

Check your internet connection. Verify your subscription is active. Try signing out and back in.

Fix #2: Autocomplete not appearing

Enable autocomplete in Settings > Cursor > General. Check that the file type is supported.

Fix #3: Composer not working

Composer requires Pro plan. Select files with Ctrl+Enter. Make sure you have described the changes clearly.

Fix #4: High memory usage

Close unused tabs. Disable unused extensions. Cursor indexes your entire project — large repos use more memory.

Fix #5: Extensions not compatible

Cursor is a VS Code fork. Most VS Code extensions work. Some may need manual installation from VSIX files.

Fix #6: Git integration issues

Cursor uses VS Code git. Ensure git is installed and in PATH. Try running git commands in the integrated terminal.

Fix #7: Keybinding conflicts

Go to Settings > Keyboard Shortcuts. Search for conflicting bindings. Cursor adds its own shortcuts that may conflict.

Fix #8: AI responses are poor quality

Specify the programming language and framework. Include relevant file context. Use @file references for better context.