Stumbled upon the samt issue today and the exception I get is a
FormatException at parsing a Double. My environment is an app for WP7
on Swedish regional settings.
If changing regional settings on the phone to "en-US" it happily parse
doubles in the json response, however running under other cultures
where the double separator would be different than "." the parsing
throws.
Found
https://github.com/restsharp/RestSharp/blob/master/RestSharp/Deserializers/JsonDeserializer.cs
and I see no double parsing there.
/Torulf