- Plug.BadRequestError
- Plug.CSRFProtection.InvalidCSRFTokenError
- Plug.CSRFProtection.InvalidCrossOriginRequestError
- Plug.Conn.AlreadySentError
- Plug.Conn.CookieOverflowError
- Plug.Conn.InvalidHeaderError
- Plug.Conn.InvalidQueryError
- Plug.Conn.NotSentError
- Plug.Conn.WrapperError
- Plug.Parsers.BadEncodingError
- Plug.Parsers.ParseError
- Plug.Parsers.RequestTooLargeError
- Plug.Parsers.UnsupportedMediaTypeError
- Plug.Router.InvalidSpecError
- Plug.Static.InvalidPathError
- Plug.TimeoutError
- Plug.UploadError