How to fix: AI generated code references a nonexistent API or package
Cause
The model generated a plausible but nonexistent function, library, or dependency (a hallucination).
The fix
- 1Run the code: compile/type-check and run tests, which catch most hallucinated APIs immediately.
- 2Validate that any new dependency resolves to a known-good, existing package before installing it.
- 3Give the agent better context — accurate docs, types, and a rules file — so it relies less on guessing.
- 4Add a review hook in CI that flags new dependencies and missing tests on AI-generated diffs.
Prevent it
Treat AI-generated code as untrusted input: require tests, scan dependencies, and gate it in CI.
Frequently asked questions
What causes “AI generated code references a nonexistent API or package”?
The model generated a plausible but nonexistent function, library, or dependency (a hallucination).
How do I prevent “AI generated code references a nonexistent API or package” from recurring?
Treat AI-generated code as untrusted input: require tests, scan dependencies, and gate it in CI.