ios - Swift Crash libobjc.A.dylib objc_msgSend -

-

i use crashlytics crashes of app in appstore. users getting crash cannot seem repro on machine (neither few friends tested app through testflight). logs fabric: 

thread : crashed: com.apple.main-thread 0  libobjc.a.dylib                0x181d09bdc objc_msgsend + 28 1  foundation                     0x18304be20 __nsthreadperformperform + 340 2  corefoundation                 0x182640efc __cfrunloop_is_calling_out_to_a_source0_perform_function__ + 24 3  corefoundation                 0x182640990 __cfrunloopdosources0 + 540 4  corefoundation                 0x18263e690 __cfrunlooprun + 724 5  corefoundation                 0x18256d680 cfrunlooprunspecific + 384 6  graphicsservices               0x183a7c088 gseventrunmodal + 180 7  uikit                          0x1873e4d90 uiapplicationmain + 204 8  <app name>                     0x1000b2f0c main (appdelegate.swift:14) 9  libdispatch.dylib              0x18210e8b8 (missing)

i can't seem understand means , searched other questions can't seem find answer. contacted crashlytics team, , told me following:

it sounds source of crash sort of out of memory crash. causing crashlytics close before finishes writing, resulting in in crash report.

any nice ways debug in order pinpoint source of crash? appreciate help!

edit: added screenshot of threads in crash report crashlytics in case wants info there: enter image description here

thread : com.apple.nsurlconnectionloader 0  libsystem_kernel.dylib         0x1823354bc mach_msg_trap + 8 1  libsystem_kernel.dylib         0x182335338 mach_msg + 72 2  corefoundation                 0x182764ac0 __cfrunloopservicemachport + 196 3  corefoundation                 0x1827627c4 __cfrunlooprun + 1032 4  corefoundation                 0x182691680 cfrunlooprunspecific + 384 5  cfnetwork                      0x182e01434 +[nsurlconnection(loader) _resourceloadloop:] + 412 6  foundation                     0x18316fc40 __nsthread__start__ + 1000 7  libsystem_pthread.dylib        0x182417b28 _pthread_body + 156 8  libsystem_pthread.dylib        0x182417a8c _pthread_body + 154 9  libsystem_pthread.dylib        0x182415028 thread_start + 4  thread : avaudiosession notify thread 0  libsystem_kernel.dylib         0x1823354bc mach_msg_trap + 8 1  libsystem_kernel.dylib         0x182335338 mach_msg + 72 2  corefoundation                 0x182764ac0 __cfrunloopservicemachport + 196 3  corefoundation                 0x1827627c4 __cfrunlooprun + 1032 4  corefoundation                 0x182691680 cfrunlooprunspecific + 384 5  libavfaudio.dylib              0x188959834 genericrunloopthread::entry(void*) + 164 6  libavfaudio.dylib              0x18892e3a8 capthread::entry(capthread*) + 84 7  libsystem_pthread.dylib        0x182417b28 _pthread_body + 156 8  libsystem_pthread.dylib        0x182417a8c _pthread_body + 154 9  libsystem_pthread.dylib        0x182415028 thread_start + 4

edit 2: using swift code, , way forwarding messages selectors following: 

nstimer.scheduledtimerwithtimeinterval(0.02, target: self, selector: selector("updateprogresscircle"), userinfo: nil, repeats: true)  func updateprogresscircle() {    // }

problem can't repro crash locally. users facing that. call selectors in similar fashion.

an objc_msgsend crash happens when try forward message selector (using old objective-c forward messaging). can produced target-action, notifications, protocol declarations, timers, perform selectors or other function involves passing in function's selector syntax: i.e: "dosomethingwiththis:".

i can see crash logs have swift components in app (at least appdelegate). swift components, unlike obj-c components, aren't compatible obj-c forward messaging system out of box.

my gut feeling have swift object in code conforms protocol, added target/notification observer or somehow expecting 1 of functions called forward messaging. suggest go through classes , see if case. once find culprit can fix error appending @objc function expecting message.

i.e: if function, in swift class called (and is, say, registered notification):

func yourfunction() {    //your code }

call it:

@objc func yourfunction() {   //your code }

it's long shot hope helps!


Comments

Post a Comment

Popular posts from this blog

java - Run spring boot application error: Cannot instantiate interface org.springframework.context.ApplicationListener -

-
i have spring project , try make use spring boot , run @ embadded tomcat following : https://spring.io/guides/gs/rest-service/ this application //@configuration //@enableaspectjautoproxy @springbootapplication @componentscan(basepackages = "gux.prome") public class application { public static void main(string[] args) { springapplication.run(application.class, args); } } if use maven command: mvn spring-boot:run , project starts fine, need debug , run main method @ intelij, exception occurs: exception in thread "main" java.lang.illegalargumentexception: cannot instantiate interface org.springframework.context.applicationlistener : org.springframework.boot.logging.classpathloggingapplicationlistener @ org.springframework.boot.springapplication.createspringfactoriesinstances(springapplication.java:414) @ org.springframework.boot.springapplication.getspringfactoriesinstances(springapplication.java:394) @ org.springframework.bo...
Read more

reactjs - React router and this.props.children - how to pass state to this.props.children -

-
i'm using react-router first time , don't know how think in yet. here's how i'm loading components in nested routes. entry point .js reactdom.render( <router history={hashhistory} > <route path="/" component={app}> <route path="models" component={content}> </route> </router>, document.getelementbyid('app') ); app.js render: function() { return ( <div> <header /> {this.props.children} </div> ); } so child of app content component sent in. i'm using flux , app.js has state , listens changes, don't know how pass state down this.props.children. before using react-router app.js defines children explicitly, passing state natural don't see how now. using couple of react helper methods can add state, props , whatever else this.props.children render: function() { var children = react.ch...
Read more

Excel VBA "Microsoft Windows Common Controls 6.0 (SP6)" Location Changes -

-
i have excel workbook used generate quotations customers. there main page user inputs data, , there buttons generate various pdfs , send them customer. however, 1 user consistently getting error preventing generating , sending pdfs. i beleive "microsoft windows common controls 6.0 (sp6)". it's installed on users' computers. on mine, location "c:\windows\syswow64\mscomctl.ocx" on others "c:\windows\system32\mscomctl.ocx" the user experiencing issues on 32-bit machine, "mscomctl.ocx" file should in system32. have manually put in there, , pointed common controls reference in vba it. issue seems keep reverting looking in syswow64. since folder doesn't exist, can't find it, , can't produce pdfs. i thought perhaps issue user running older version of office (2007) there users on 2013 , 2016. thought perhaps mixture of 64-bit , 32-bit users. user gets sent workbook other users (as quotation process goes further, gets passed ...
Read more