Exception when adding key-value arguments

[bambuk6]

I believe the below code is valid but it throws an exception.

public static void Main(string[] args)
  {
    var extra = new Dictionary<string, string>();
    string configFile;

    var p = new OptionSet{
        {"c|config", v => configFile = v},
        {"p|pair", (string key, string val) => extra.Add(key, val)}
    };

    p.Parse(args);
  }

Exception:

Unhandled exception. System.InvalidOperationException: Invalid ValueType with MaximumParameterCount of 2, expecting Optional or Required.
   at NConsole.Options.Option.VerifyMaximumParameterCount()
   at NConsole.Options.Option..ctor(String prototype, String description)
   at NConsole.Options.InvokableActionOption`1..ctor(String prototype, String description, TCallback callback)
   at NConsole.Options.KeyValueActionOption`2..ctor(String prototype, String description, OptionCallback`2 callback)
   at NConsole.Options.OptionSet.<>c__DisplayClass22_0`2.<Add>b__0()
   at NConsole.Options.OptionSet.Add(Delegate callback, Func`1 optionFactory)
   at NConsole.Options.OptionSet.Add[TKey,TValue](String prototype, String description, OptionCallback`2 callback)
   at NConsole.Options.OptionSet.Add(String prototype, String description, OptionCallback`2 callback)
   at NConsole.Options.OptionSet.Add(String prototype, OptionCallback`2 callback)
   at Program.Main(String[] args) in C:\Users\Alex\Projects\CSProbe\Program.cs:line 208

[mwpowellhtx]

@bambuk6 Thanks for the report. It is probably a bug in the Option class. That said, I am not actively maintaining it, so feel free to troubleshoot and submit a PR. I'll consider that and repackage as appropriate. Thank you.