嗨，我需要从我的应用程序发送LinkedIn连接请求。我引用此链接，但我仍然得到错误。

1. LinkedIn Integration in iOS: Invitation API not working
   我的代码

• • 按以下代码发送请求**

NSURL *url = [NSURL URLWithString:@"http://api.linkedin.com/v1/people/~/mailbox"];
    OAMutableURLRequest *request =
    [[OAMutableURLRequest alloc] initWithURL:url
                                    consumer:oAuthLoginView.consumer
                                       token:oAuthLoginView.accessToken
                                    callback:nil
                           signatureProvider:[[OAHMAC_SHA1SignatureProvider alloc] init]];

    [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

    NSDictionary *temp=[[NSDictionary alloc]initWithObjectsAndKeys:@"/people/email=test@test.com",@"_path",@"Test",@"first-name",@"Testing",@"last-name", nil];
    NSDictionary *temp2=[[NSDictionary alloc] initWithObjectsAndKeys:temp,@"person",nil];
    NSArray *arr2=[[NSArray alloc]initWithObjects:temp2, nil];
    NSDictionary *value=[[NSDictionary alloc]initWithObjectsAndKeys:arr2,@"values", nil];
    NSDictionary *dict3=[[NSDictionary alloc]initWithObjectsAndKeys:@"friend",@"connect-type",nil];
    NSDictionary *dict4=[[NSDictionary alloc] initWithObjectsAndKeys:dict3,@"invitation-request", nil];
    NSDictionary *dict=[[NSDictionary alloc]initWithObjectsAndKeys:dict4,@"item-content",@"Say yes!",@"body",@"Invitation to connect.",@"subject",value,@"recipients", nil];

    NSString *updateString = [dict JSONString];
    [request setHTTPBodyWithString:updateString];
    [request setHTTPMethod:@"POST"];

    OADataFetcher *fetcher = [[OADataFetcher alloc] init];
    [fetcher fetchDataWithRequest:request
                         delegate:self
                didFinishSelector:@selector(postUpdateApiCallResult1:didFinish:)
                  didFailSelector:@selector(postUpdateApiCallResult1:didFail:) withPrepare:NO];

• • OAD数据提取器. m**

- (void)fetchDataWithRequest:(OAMutableURLRequest *)aRequest delegate:(id)aDelegate didFinishSelector:(SEL)finishSelector didFailSelector:(SEL)failSelector withPrepare:(BOOL)isPrepare
{
    [request release];
    request = [aRequest retain];
    delegate = aDelegate;
    didFinishSelector = finishSelector;
    didFailSelector = failSelector;

    if (isPrepare)
        [request prepare];

    connection = [[NSURLConnection alloc] initWithRequest:aRequest delegate:self];
}

我在下面遇到错误

<error>
  <status>401</status>
  <timestamp>1399885201227</timestamp>
  <request-id>YTU5250BQI</request-id>
  <error-code>0</error-code>
  <message>Unknown authentication scheme</message>
</error>

o授权登录视图. m

OARequestParameter *nameParam = [[OARequestParameter alloc] initWithName:@"scope"
                                                                       value:@"r_fullprofile+r_contactinfo+r_emailaddress+r_network+rw_nus+w_messages"];
    NSArray *params = [NSArray arrayWithObjects:nameParam, nil];
    [request setParameters:params];
    OARequestParameter * scopeParameter=[OARequestParameter requestParameter:@"scope" value:@"r_fullprofile r_contactinfo r_emailaddress r_network rw_nus w_messages"];

这些是我给出的previlages。我分享文本和从LinkedIn获得个人资料信息，所有工作正常，但发送请求不工作。