prog.cs(9,7): error CS1502: The best overloaded method match for `System.Collections.Generic.Dictionary<string,string>.this[string]' has some invalid arguments
/usr/lib/mono/4.5/mscorlib.dll (Location of the symbol related to previous error)
prog.cs(9,8): error CS1503: Argument `#1' cannot convert `double' expression to type `string'
Compilation failed: 2 error(s), 0 warnings