AFDownloadRequestOperation crashes on 404 response - ios

Question

I created a new project in xcode with only this code to test
NSString *cachePath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) objectAtIndex:0];
cachePath = [cachePath stringByAppendingPathComponent:#"blabla.jpg"];
NSString *fileURL = #"http://en.wikipedia.org/dcjhbdkcjc";
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:fileURL]];
AFDownloadRequestOperation *operation = [[AFDownloadRequestOperation alloc] initWithRequest:request targetPath:cachePath shouldResume:YES];
//AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"%#",responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"%#",error);
}];
[operation start];
And crashes when 404 is returned with the following error con console, none of the NSLog in the test code are ever called.
2014-08-22 16:51:33.809 AFDownloadTest[7106:3403] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[3]'
*** First throw call stack:
(
0 CoreFoundation 0x0000000101b39495 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x000000010172d99e objc_exception_throw + 43
2 CoreFoundation 0x0000000101b02dce -[__NSPlaceholderDictionary initWithObjects:forKeys:count:] + 382
3 CoreFoundation 0x0000000101b2e23f +[NSDictionary dictionaryWithObjects:forKeys:count:] + 63
4 AFDownloadTest 0x000000010002a955 -[AFHTTPResponseSerializer validateResponse:data:error:] + 1893
5 AFDownloadTest 0x0000000100002cf2 -[AFDownloadRequestOperation connection:didReceiveData:] + 178
6 Foundation 0x000000010141e36b __65-[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]_block_invoke + 48
7 Foundation 0x00000001012d1bdb -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:] + 210
8 Foundation 0x00000001012d1aec -[NSURLConnectionInternal _withActiveConnectionAndDelegate:] + 69
9 Foundation 0x00000001012d1e37 _NSURLConnectionDidReceiveData + 79
10 CFNetwork 0x0000000106ae8e05 ___ZN27URLConnectionClient_Classic23_delegate_cacheTrifectaEPK20_CFCachedURLResponseU13block_pointerFvvE_block_invoke + 778
11 CFNetwork 0x0000000106ae4802 ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 84
12 CoreFoundation 0x0000000101adff74 CFArrayApplyFunction + 68
13 CFNetwork 0x0000000106a573e7 _ZN19RunloopBlockContext7performEv + 133
14 CFNetwork 0x0000000106a57217 _ZN17MultiplexerSource7performEv + 247
15 CFNetwork 0x0000000106a5703a _ZN17MultiplexerSource8_performEPv + 72
16 CoreFoundation 0x0000000101ac8d21 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
17 CoreFoundation 0x0000000101ac85f2 __CFRunLoopDoSources0 + 242
18 CoreFoundation 0x0000000101ae446f __CFRunLoopRun + 767
19 CoreFoundation 0x0000000101ae3d83 CFRunLoopRunSpecific + 467
20 Foundation 0x0000000101339fce -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 253
21 Foundation 0x00000001012dfdc0 -[NSRunLoop(NSRunLoop) run] + 74
22 AFDownloadTest 0x0000000100011fe8 +[AFURLConnectionOperation networkRequestThreadEntryPoint:] + 280
23 Foundation 0x00000001013352df __NSThread__main__ + 1167
24 libsystem_pthread.dylib 0x000000010236e2fc _pthread_body + 131
25 libsystem_pthread.dylib 0x000000010236e279 _pthread_body + 0
26 libsystem_pthread.dylib 0x000000010236c4b1 thread_start + 13
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
Halting the app at the line 169 of the file AFURLConnectionOperation.m
which is [runLoop run];

Answer 1

This was a bug on the AFDownloadRequestOperation code, was fixed on this commit a36bd98208, on sept 4, 2014