                                     }
                                     else
                                     {
-                                        let error = NSError(domain: SessionManager.errorDomain, code: -1, userInfo: [NSLocalizedDescriptionKey:  "Invalid content type"])
+                                        let error = NSError(domain: kErrorDomain, code: -1, userInfo: [NSLocalizedDescriptionKey:  "Invalid content type"])
                                         failedHandler(error)
                                     }
                                 }

                    }
                    else
                    {
                        let error = NSError(domain: SessionManager.errorDomain, code: -1, userInfo: [NSLocalizedDescriptionKey: "No data returned from the server"])
                        failedHandler(error)
                    }
                }

                                        {
                                            if let error = responseBody["error"]
                                            {
                                                let error = NSError(domain: kErrorDomain, code: -1, userInfo: [NSLocalizedDescriptionKey: error])
                                                failedHandler(error)
                                            }
                                            else
