06/27/2011 17:00:49.74 w3wp.exe (0x1B80) 0x2DBC SharePoint Foundation Workflow Infrastructure 98d4 Unexpected System.Workflow.Runtime.Hosting.PersistenceException: Type 'Microsoft.SharePoint.SPListItem' in Assembly 'Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' is not marked as serializable. ---> System.Runtime.Serialization.SerializationException: Type 'Microsoft.SharePoint.SPListItem' in Assembly 'Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' is not marked as serializable. at System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type) at System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context) at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo() at System.Runtime.Serialization.Fo... f7358b22-d86b-4722-8328-5268736cfbcd