# `ExFPE.NotStartedError`
[🔗](https://github.com/g-andrade/ex_fpe/blob/v0.1.0/lib/ex_fpe/exceptions.ex#L135)

Raised by a `use ExFPE` module's generated functions when its context is not
running — usually because it is missing from the supervision tree, or the
application is stopped.

# `t`

```elixir
@type t() :: %ExFPE.NotStartedError{__exception__: term(), reason: term()}
```

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*Consult [api-reference.md](api-reference.md) for complete listing*