# `OptionParser.ParseError`
[🔗](https://github.com/elixir-lang/elixir/blob/v1.20.0-rc.3/lib/elixir/lib/option_parser.ex#L44)

An exception raised when parsing option fails.

For example, see `OptionParser.parse!/2`.

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