Could not load type 'System.ServiceModel"

Hi,

I have created a PCL project (profile 49) that has a reference to DotCMIS (DLL-file). I use the trial-verisionen but considering buying a license if this is sorted out. When I trying to run the iPad app i get the following error.

Unhandled Exception:

System.TypeLoadException: Could not load type 'System.ServiceModel.Channels.MtomMessageEncodingBindingElement' from assembly 'System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.