# The error `load.namespace-import`

**environment**: something the run needs is missing or different where it runs (a package, a file, a device, the network): the error names what to install, fetch or attach.

**On the refusal list: no test names this code**, since no file under `tests/` names it. A test may still raise it without naming it, and none asserts it: what its message and action say is read from the source below. The hook that records which codes a test raises has not landed, so until it does the list says names and never raises. The list (`docs/ratchets/refusal_codes.txt`) only shrinks.

Where MIME gives it, with what its message says happened and what its action says to do (`{…}` is filled in from the experiment):

- in `mime/saved/_resolve.py`:
  - what happened: `namespace {…} is provided by {…}, which fails to import: {…}`
  - what to do: `pip install '{…}=={…}'` or `reinstall it: pip install --force-reinstall {…}`

Reading an error and reaching its full traceback: [reading an error](../reading_errors.md). Every code: [the index](index.md).