ios – 错误消息：[MC]从公共有效用户设置读取和[MC] systemgroup.com.apple.configurationprofiles路径的系统组容器是

[NSURLConnection sendAsynchronousRequest:request queue:myQueue completionHandler:^(NSURLResponse *response,NSData *data,NSError *error) {
        NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
        NSLog(@"response status code: %ld,error status : %@",(long)[httpResponse statusCode],error.description);

        if ((long)[httpResponse statusCode] >= 200 && (long)[httpResponse statusCode]< 400)
            {
               // do stuff
                [self requestFunction]; //Web Service
            }
}];

错误消息：

2017-02-27 01:13:30.088641 RENAULT[210:12313] [MC] System group container for systemgroup.com.apple.configurationprofiles path is /private/var/containers/Shared/SystemGroup/systemgroup.com.apple.configurationprofiles
2017-02-27 01:13:30.090449 RENAULT[210:12313] [MC] Reading from public effective user settings.

[self requestFunction]函数启动一个简单的请求：

NSMutableURLRequest* request = [[NSMutableURLRequest alloc] init];
        NSString *url_string = [bytes stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
        [request setURL:[NSURL URLWithString:[set_send_order stringByAppendingString: url_string]]];
        [request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
        [request setTimeoutInterval:timeOut];
        [NSURLConnection connectionWithRequest:request delegate:self];

我确切地说没有调用connectionDidFinishLoading：但是如果我在没有sendAsynchronousRequest：的情况下直接启动它,它就可以工作了.
那么为什么我使用sendAsynchronousRequest：函数会让我出现两条错误消息,并且错误地调用了connectionDidFinishLoading？

先感谢您.