GData 2.2.0 API usage

Anyone using the latest Google Data API? I've been trying to get 2.2.0.0 to run in my project but it throws an error: Failed to resolve "System.Reflection.Emit.ModuleBuilder" reference from "mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" - I can't find this reference either in the Google project or my own. Thoughts?

I was using 1.8.0 but it now throws an error when I try to make a Query: Google.GData.Client.GDataGAuthRequest.Execute (Int32 retryCounter) [0x00000] in :0 at Google.GData.Client.GDataGAuthRequest.Execute () [0x00000] in :0 at Google.GData.Client.Service.Query (System.Uri queryUri, DateTime ifModifiedSince, System.String etag, System.Int64& contentLength) [0x00000] in :0

Thanks, Rick