ios - AFNetworking and -[__NSCFBoolean length]: unrecognized selector sent to instance 0x1f54358 -

i have days strange problem 2014-03-24 16:50:56.097 myapp[1610:4703] -[__nscfboolean length]: unrecognized selector sent instance 0x1f54358.

i have debugging library, static library package .framework , distribute developers.

debugging little hard, in point of breakpoints, have added static library .xcodeproj file sample client application , tried work it. after research , trying figure out occur have no other reason believe it's afnetworking problem!

i have code in static library:

edited:

// selector parameter (nsdata *)thedata      nsmutableurlrequest *arequest = [[[nsmutableurlrequest alloc] initwithurl:theurl                                                                              cachepolicy:nsurlrequestuseprotocolcachepolicy timeoutinterval:10.0f] autorelease];              [arequest sethttpmethod:@"post"];             [arequest setvalue:key forhttpheaderfield:@"custom-header"];             [arequest setvalue:@"plain/text" forhttpheaderfield:@"content-type"];      nsmutabledata *postdata = [nsmutabledata data];             [postdata appenddata:thedata];             [arequest sethttpbody:postdata];      afhttprequestoperation* operation = [[afhttprequestoperation alloc] initwithrequest:arequest];                  [operation setcompletionblockwithsuccess:^(afhttprequestoperation *operation, id responseobject)                     {                     _pendingdispatchescount --;                     nslog(@"%@, %ld", kserverrespondedmsg, (long)operation.response.statuscode);                     bool statuscodeacceptable = [[nsindexset indexsetwithindexesinrange:nsmakerange(200, 100)] containsindex:[operation.response statuscode]];                     dispatch_async(dispatch_get_main_queue(),                         ^{                             [delegate analyticsoperationcompleted:statuscodeacceptable fordata:analyticsdata];                         });                     }                 failure:^(afhttprequestoperation *operation, nserror *error)                     {                     _pendingdispatchescount --;                     nslog(@"%@, %ld", kserverrespondedmsg, (long)operation.response.statuscode);                     dispatch_async(dispatch_get_main_queue(),                         ^{                             [delegate analyticsoperationcompleted:no fordata:analyticsdata];                         });                     }];                  [operation start]; 

if comment [operation start]; sample client starts properly. if let operation start 2014-03-24 16:50:56.097 myapp[1610:4703] -[__nscfboolean length]: unrecognized selector sent instance.

drives me crazy @ moment, because error occurs 1 developer reported , created sample reproduces it.

edit: found way stacktrace , seems not caused application:

backtrace:

0   corefoundation                      0x000000010201c495 __exceptionpreprocess + 165     1   libobjc.a.dylib                     0x0000000101d7b99e objc_exception_throw + 43     2   corefoundation                      0x00000001020ad65d -[nsobject(nsobject) doesnotrecognizeselector:] + 205     3   corefoundation                      0x000000010200dd8d ___forwarding___ + 973     4   corefoundation                      0x000000010200d938 _cf_forwarding_prep_0 + 120     5   corefoundation                      0x000000010200e9d1 cfurlcreatestringbyaddingpercentescapes + 81     6   cfnetwork                           0x0000000103fdf1ab _zl13appendescapedp10__cfstringpks_ + 40     7   cfnetwork                           0x0000000103fdef69 _zl25initializeuseragentstringv + 124     8   libsystem_pthread.dylib             0x00000001026d58d6 __pthread_once_handler + 65     9   libsystem_platform.dylib            0x00000001025e3156 _os_once + 73     10  libsystem_pthread.dylib             0x00000001026d5875 pthread_once + 57     11  cfnetwork                           0x0000000103fdeb23 cleanuprequest + 105     12  cfnetwork                           0x0000000103fde824 _zn17httpnetconnection19preparetransmissionep17httpnetstreaminfop17__corewritestream + 1224     13  cfnetwork                           0x0000000103fdda65 _zn13netconnection7enqueueepvh + 539     14  cfnetwork                           0x0000000103fdd7e4 _zn17httpnetstreaminfo16_streamimpl_openep13cfstreamerrorph + 88     15  cfnetwork                           0x000000010403c295 _zthn120_n17httpnetstreaminfo16_streamimpl_openep13cfstreamerrorph + 13     16  cfnetwork                           0x0000000103fbdfc2 _zn14corestreambase21_streaminterface_openev + 80     17  cfnetwork                           0x0000000103fdd057 _zn12httpprotocol10openstreamev + 255     18  cfnetwork                           0x0000000104048c41 _zn12httpprotocol26usenetconnectionforrequestep13netconnectionp15__cfhttpmessageh + 1753     19  cfnetwork                           0x0000000103fdc268 _zn24httpconnectioncacheentry28dispatchconnectiontoprotocolep13netconnectionp12httpprotocolp18httprequestmessageh + 276     20  cfnetwork                           0x0000000103fdc027 _zn24httpconnectioncacheentry34notifynextprotocolofopenconnectionep13netconnectionh + 301     21  cfnetwork                           0x0000000103fd9230 _zn24httpconnectioncacheentry25enqueuerequestforprotocolep12httpprotocolp15__cfhttpmessage + 650     22  cfnetwork                           0x0000000103fd8bf0 _zn19httpconnectioncache34_onqueue_enqueuerequestforprotocolep12httpprotocolp15__cfhttpmessage + 178     23  cfnetwork                           0x000000010404e843 ___zn19httpconnectioncache25enqueuerequestforprotocolep12httpprotocolp15__cfhttpmessage_block_invoke + 26     24  corefoundation                      0x0000000101fc2f74 cfarrayapplyfunction + 68     25  cfnetwork                           0x0000000103fd43e7 _zn19runloopblockcontext7performev + 133     26  cfnetwork                           0x0000000103fd4217 _zn17multiplexersource7performev + 247     27  cfnetwork                           0x0000000103fd403a _zn17multiplexersource8_performepv + 72     28  corefoundation                      0x0000000101fabd21 __cfrunloop_is_calling_out_to_a_source0_perform_function__ + 17     29  corefoundation                      0x0000000101fab5f2 __cfrunloopdosources0 + 242     30  corefoundation                      0x0000000101fc746f __cfrunlooprun + 767     31  corefoundation                      0x0000000101fc6d83 cfrunlooprunspecific + 467     32  foundation                          0x000000010193089c +[nsurlconnection(loader) _resourceloadloop:] + 348     33  foundation                          0x00000001019832df __nsthread__main__ + 1167     34  libsystem_pthread.dylib             0x00000001026d4899 _pthread_body + 138     35  libsystem_pthread.dylib             0x00000001026d472a _pthread_struct_init + 0     36  libsystem_pthread.dylib             0x00000001026d8fc9 thread_start + 13 

edited: link full plcrashreporter crash report symbolicated. https://drive.google.com/file/d/0b_4ydwjioti1c0hia25nsxftwvk/edit?usp=sharing

any or thought appreciated, in advance.

regards.

look @ stack trace , think might go on. stack trace not magical thing, it's directly related code.

the crash caused sending "length" message nsnumber containing boolean value.

on stack trace see cfurlcreatestringbyaddingpercentescapes. seems cfurlcreatestringbyaddingpercentescapes called nsnumber object instead of string.

why cfurlcreatestringbyaddingpercentescapes called? it's called strings containing urls , similar things cannot transmitted , need translating, space %20.

so passed nsnumber sent on network. header property, url, , on.

go through things set in url request. problem in "arequest", since decided hide it. (that's subconscious mind not wanting see mistake of course counter-productive here).