Unhandled Exception: Fclp.OptionAlreadyExistsException

[tidji22]

Unhandled Exception: Fclp.OptionAlreadyExistsException: M
at Fclp.Internals.Validators.NoDuplicateOptionValidator.ValuesAreEqual(String value, String otherValue) in z:\Builds\work\23f7f5f0221f789c\FluentCommandLineParser\Internals\Validators\NoDuplicateOptionValidator.cs:line 80
at Fclp.Internals.Validators.NoDuplicateOptionValidator.Validate(ICommandLineOption commandLineOption) in z:\Builds\work\23f7f5f0221f789c\FluentCommandLineParser\Internals\Validators\NoDuplicateOptionValidator.cs:line 69
at Fclp.Internals.Validators.CommandLineOptionValidator.Validate(ICommandLineOption commandLineOption) in z:\Builds\work\23f7f5f0221f789c\FluentCommandLineParser\Internals\Validators\CommandLineOptionValidator.cs:line 54
at Fclp.FluentCommandLineParser.SetupInternal[T](String shortOption, String longOption) in z:\Builds\work\23f7f5f0221f789c\FluentCommandLineParser\FluentCommandLineParser.cs:line 184
at Fclp.FluentCommandLineParser.Setup[T](Char shortOption, String longOption) in z:\Builds\work\23f7f5f0221f789c\FluentCommandLineParser\FluentCommandLineParser.cs:line 158
at MonitoringPluginsForWindows.check_iis.Main(String[] args) in C:\DGL\check_iis-master\Solution\check_iis\Program.cs:line 224