AFNetworkingErrorDomain 错误

AFNetworking
and POST Request

I'm getting this response in error.userInfo while making a POST request from AFNetworking.
Can anyone tell either I'm missing anything obvious or something need to fix at my server end?

Request Failed with Error: Error Domain=AFNetworkingErrorDomain Code=-1016 "Expected content type {( "text/json", "application/json", "text/javascript" )}, got text/html" UserInfo=0x6d7a730 {NSLocalizedRecoverySuggestion=index test, AFNetworkingOperationFailingURLResponseErrorKey=,
NSErrorFailingURLKey=http://54.245.14.201/, NSLocalizedDescription=Expected content type {( "text/json", "application/json", "text/javascript" )}, got text/html, AFNetworkingOperationFailingURLRequestErrorKey=http://54.245.14.201/>}, { AFNetworkingOperationFailingURLRequestErrorKey
= "http://54.245.14.201/>"; AFNetworkingOperationFailingURLResponseErrorKey = ""; NSErrorFailingURLKey = "http://54.245.14.201/"; NSLocalizedDescription = "Expected content type {(\n \"text/json\",\n \"application/json\",\n

\"text/javascript\"\n)}, got text/html"; NSLocalizedRecoverySuggestion = "index test"; }

And I'm using this code;

AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
[httpClient registerHTTPOperationClass:[AFJSONRequestOperation class]];
[httpClient setDefaultHeader:@"Accept" value:@"application/json"];
NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
                        @"Ans", @"name",
                        @"29", @"age",
                        nil];

NSMutableURLRequest *request = [httpClient requestWithMethod:@"POST" path:@"/" parameters:params];

AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request
    success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
        NSLog(@"Success");
        NSLog(@"%@",JSON);

    } failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
        NSLog(@"Request Failed with Error: %@, %@", error, error.userInfo);
        NSLog(@"Failure");
}];

[operation start];
[operation waitUntilFinished];

解决办法：

By default, AFJSONRequestOperation accepts
only "text/json", "application/json" or "text/javascript" content-types from server, but you are getting "text/html".

Fixing on server would be better, but you can also add "text/html" content type as acceptable in your app:

[AFJSONRequestOperation addAcceptableContentTypes:[NSSet setWithObject:@"text/html"]];

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