I have double checked my Authentication credentials, it has been authenticated, 
besides, I can tweet and retweet messages via my app by using xAuth.


On 3 May 2011, at 03:44, Bess wrote:

> http://apiwiki.twitter.com/w/page/22554652/HTTP-Response-Codes-and-Errors
> 401 Unauthorized: Authentication credentials were missing or
> incorrect.
> 
> Possible that your xAuth has been rejected?
> 
> On Apr 28, 1:36 am, Matt Wang <ma...@theappbusiness.com> wrote:
>> Dear Sir or Madam,
>> 
>> I am programming for Number 10 iphone application.Currently,this
>> application has xAuth access and can post information via twitter.
>> 
>> However, when I try to call [twitterEngine
>> enableUpdatesFor:@"follower"] for adding a follower. it will return a
>> 401 error.
>> 
>> here is my code:
>> 
>> - (void)accessTokenReceived:(OAToken *)token forRequest:(NSString
>> *)connectionIdentifier {
>> 
>>         [self.twitterEngine setAccessToken:token];
>> 
>> }
>> 
>> - (void)requestSucceeded:(NSString *)requestIdentifier{
>> 
>>         switch (stage) {
>>                 case postLogin:
>> 
>>                         stage = loginCorrect;
>>                         break;
>>                 case loginCorrect:
>> 
>>                         if (twitterAction == follow) {
>>                                 NSString *follower = [NSString 
>> stringWithFormat:@"Number10gov"];
>>                                 NSLog(@"Try to Follow %@",follower);
>>                                 NSLog(@"enableUpdatesFor: 
>> connectionIdentifier = %@",
>> [twitterEngine enableUpdatesFor:follower]);
>> 
>>                         } else if (twitterAction == retweet || twitterAction 
>> == tweet) {
>> ...............
>> //
>> 
>> post and retweet work well. but follow action didn't work. could you
>> help me to point out what is the problem?
>> 
>> if you can give me a example code to show how to do follow action in
>> xAuth, that would be great.
>> 
>> Many Thanks for your help.
>> 
>> I am looking forward to your reply.
>> 
>> Many thanks.
> 
> -- 
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-- 
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