当我使用facebook sdk邀请时，FBSDKAppInviteDialogDelegate方法（ - （void）appInviteDialog：（FBSDKAppInviteDialog *）appInviteDialog didFailWithError：（NSError *）error）返回：
＆＃34; error = Error Domain = com.facebook.sdk.core Code = 2＆＃34;（null）＆＃34; UserInfo = {com.facebook.sdk：FBSDKErrorDeveloperMessageKey =无效的method_results。，com.facebook.sdk：FBSDKErrorArgumentNameKey = method_results}＆＃34;