Cursor App Not Working? Fix the Common Errors

When Cursor is “not working,” it is almost always one of a handful of fixable causes: a stale or signed-out session, an exhausted usage budget, a broken project index, a network or proxy block, or an extension conflict. The fastest fix is to identify which bucket you are in before randomly reinstalling. Below is a triage list, the specific fix for each, and the order to try them. None of this is about the code you generate; it is about getting the editor responsive again so you can get back to building, ideally against a real design like a free VP0 layout (the free iOS and React Native design library AI builders read from) so each prompt has a clear target.

Triage first: which failure is it?

Match the symptom to the cause before you touch anything:

Symptom	Likely cause	First fix
AI does nothing on submit	Signed out or expired session	Sign out and back in
”You’ve hit your limit”	Usage budget exhausted	Check usage, switch to Auto, or top up
Wrong or no context	Stale codebase index	Reindex the project
Requests time out	Network, VPN, or proxy block	Test network, allowlist Cursor
Editor sluggish or crashing	Extension conflict or cache	Disable extensions, clear cache

Working top-down through this table resolves the large majority of “Cursor not working” reports without a reinstall.

The fixes, in order

1. Re-authenticate. Sign out, restart Cursor, and sign back in. A stale token is the single most common cause of the AI silently not responding.
2. Check your usage. Since the 2025 move to credit-based billing, a depleted budget stops premium models. Open billing to confirm, switch to the Auto model (its usage is generally unlimited), or top up. The full breakdown is in Cursor pricing 2026 explained.
3. Reindex the codebase. If answers ignore your files, the index is stale. Trigger a reindex from settings so the AI sees current code.
4. Rule out the network. Corporate VPNs and proxies often block the model endpoints. Test on another network, and if it works, ask IT to allowlist Cursor’s domains per the Cursor docs.
5. Reset extensions and cache. Cursor is a VS Code fork, so a bad extension can break it. Disable extensions, and if needed clear the cache, then re-enable one at a time.

Platform-specific gotchas

Some errors are not Cursor itself but the toolchain it drives. React Native and iOS builds are a frequent example: a failing pod install surfaces as a Cursor “error” when it is really a CocoaPods issue, covered in how to fix the Cursor React Native pod install error. The lesson is to read the actual error text: if it names pod, gradle, or xcodebuild, the fix lives in your build tools, not Cursor. Node and npm version mismatches cause the same confusion, so confirm your environment with the official Node.js releases.

When it is a prompt problem, not a bug

Sometimes Cursor “works” but the output is wrong, which is a prompting issue, not a failure. Give it context and constraints and a real target rather than vague asks; the method is in how to prompt Cursor for perfect UI and applied to a build in the best prompts for a React Native MVP with Cursor. Starting from a real design gives the model a concrete target, which cuts the “it ignored what I wanted” class of problems.

Key takeaways

• Triage first: session, usage, index, network, or extensions, in that order.
• A stale or expired session is the most common cause of the AI not responding.
• Since credit-based billing, an exhausted budget stops premium models; switch to Auto or top up.
• Read the actual error: pod, gradle, or xcodebuild means the fix is in your build tools.
• Wrong output is usually a prompt problem; give context and a real design target.

Frequently asked questions

Why is my Cursor app not working?

Most often it is a stale session, an exhausted usage budget, a stale codebase index, a network or proxy block, or an extension conflict. Triage in that order: re-authenticate first, then check usage, reindex, test the network, and reset extensions, which resolves the large majority of cases without a reinstall.

Why is Cursor’s AI not responding to my prompts?

Usually because you are signed out or your usage budget is depleted. Sign out and back in to refresh the session, then check billing; since Cursor moved to credit-based pricing, a spent budget stops premium models, so switch to the Auto model or top up.

Cursor ignores my code or gives wrong context, how do I fix it?

Reindex the project from settings, because a stale index makes the AI miss current files. If it still misses context, your prompt may lack specifics; give it the relevant files and a clear target rather than a vague ask.

How do I fix Cursor build errors in React Native?

Read the error text: if it mentions pod, gradle, or xcodebuild, the problem is in your build toolchain, not Cursor. A failing CocoaPods install is a common one, fixed by repairing pods rather than reinstalling the editor.

What is the best way to avoid Cursor errors while building?

Keep your session fresh, watch your usage budget, and prompt with context and a real target. Starting screens from a free VP0 design, the free iOS and React Native design library for AI builders, gives the model a concrete goal, which reduces wrong-output problems, at $0 design cost.