The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://www.codeweavers.net/webservices_3.0/Finance/:VehicleRequests. The InnerException message was 'There was an error deserializing the object of type System.Collections.Generic.List`1[[Services.WebApp.Soap.v1.Serializers.DataTypes.VehicleRequest, Services.WebApp, Version=1.0.7047.30079, Culture=neutral, PublicKeyToken=null]]. The value '' cannot be parsed as the type 'decimal'.'. Please see InnerException for more details.