RestSharp internal Json deserializer cannot handle DateTime format with milliseconds part (e.g. "2014-10-13T22:11:10.000Z") which is used in lot of APIs ("2014-10-13T22:11:10Z" works ok, but "2014-10-13T22:11:10.000Z" causes throwing of DateTime parse exception).
System.FormatException occurred
Message: A first chance exception of type 'System.FormatException' occurred in mscorlib.dll
Additional information: Input string was not in a correct format.