# X_ERROR_CODE_UNTHROWN_STALE

## Means

a code UNTHROWN_CODES lists as thrown by nothing is thrown again — delete it from UNTHROWN_CODES in packages/cli/src/unthrown-codes.ts

## Typical cause

UNTHROWN_CODES in packages/cli/src/unthrown-codes.ts waives the unthrown check for a code, and shipped source constructs the code again, so the listing would excuse a code that is live

## Fix

`x errors explain X_ERROR_CODE_UNTHROWN_STALE --json`

[CLI and verify](/error-codes#cli-and-verify)