# X_ENV_EXAMPLE_DRIFT

## Means

`.env.example` does not declare every variable the schema requires

## Typical cause

a key added to `defineEnv()` and not to the committed example, so the next clone boots into `X_ENV_MISSING` for a variable nobody documented

## Fix

`x env example` — the example is a projection of the schema, never a second list

[Config and environment](/error-codes#config-and-environment)