Afnetworking文本文件上传在iOS 8中无效

Question

我的文件上传代码与iOS 7完美配合，但在iOS 8.0.2上失败，我使用afnetworking 2.4.1。任何帮助都非常感谢！

我收到此错误回复：

Error Domain=NSURLErrorDomain Code=-1017 "The operation couldn’t be completed. (NSURLErrorDomain error -1017.)" UserInfo=0x1780fa680 {NSErrorFailingURLStringKey=http://silaob.com/uploadscript.php, NSErrorFailingURLKey=http://silaob.com/uploadscript.php, _kCFStreamErrorDomainKey=4, _kCFStreamErrorCodeKey=-1, NSUnderlyingError=0x17804fc00 "The operation couldn’t be completed. (kCFErrorDomainCFNetwork error -1017.)"}

这是我的代码：

NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/uploadscript.php" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
    [formData appendPartWithFileURL:filePathURL name:@"file" fileName:@"log.txt" mimeType:@"text/plain" error:nil];
} error:nil];

AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
manager.responseSerializer = [AFJSONResponseSerializer serializer];

//allow invalid certs
AFSecurityPolicy *policy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeNone];
policy.allowInvalidCertificates = YES;
manager.securityPolicy = policy;
//end

NSProgress *progress = nil;

NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithStreamedRequest:request progress:&progress completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {

    if(error)
    {
        DDLogVerbose(@"uploadDeviceLogsToServer Error: %@", error);
    }
    else
    {
        NSDictionary *responseObj = (NSDictionary *)responseObject;

        if([[responseObj valueForKey:@"result"] intValue] == 1)
            DDLogVerbose(@"Log file %@ UPLOADED",filePathURL);
        }
    }
}];

[uploadTask resume];