Symbolicating iPhone App Crash Reports

Question

I m looking to try and symbolicate my iPhone app s crash reports   I retrieved the crash reports from iTunes Connect  I have the application binary that I submitted to the App Store and I have the dSYM file that was generated as part of the build   I have all of these files together inside a single directory that is indexed by spotlight   What now   I have tried invoking   symbolicatecrash crashreport crash myApp app dSYM   and it just outputs the same text that is in the crash report to start with  not symbolicated   Am I doing something wrong

User · Answer

This is simple  after searching a lot i found clear steps to symbolicate whole crash log file    copy  app   crash report and DSYM files in a folder  connect the device with xcode Then go to window -  select devices -  view device logs Then select this device  delete all logs   drag and drop your crash on device log section   it will automatically symbolicate the crash   just right click on report and export it     happy coding  Riyaz

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I also put dsym  app bundle  and crash log together in the same directory before running symbolicate crash  Then I use this function defined in my  profile to simplify running symbolicatecrash   function desym        Developer Platforms iPhoneOS platform Developer Library PrivateFrameworks DTDeviceKit framework Versions A Resources symbolicatecrash -A -v  1   more     The arguments added there may help you   You can check to make sure spotlight  sees  your dysm files by running the command   mdfind  com apple xcode dsym uuids        Look for the dsym you have in your directory   NOTE  As of the latest Xcode  there is no longer a Developer directory  You can find this utility here    Applications Xcode app Contents SharedFrameworks DTDeviceKitBase framework Vers  ions A Resources symbolicatecrash

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Steps to analyze crash report from apple    Copy the release  app file which was pushed to the appstore  the  dSYM file that was created at the time of release and the crash report receive from APPLE into a FOLDER  OPEN terminal application and go to the folder created above  using cd command  Run atos -arch armv7 -o APPNAME app APPNAME MEMORY LOCATION OF CRASH  The memory location should be the one at which the app crashed as per the report    Ex   atos -arch armv7  -o  APPNAME app   APPNAME  0x0003b508  This would show you the exact line  method name which resulted in crash   Ex   classname functionName    -510  Symbolicating IPA  if we use IPA for symbolicating - just rename the extention  ipa with  zip   extract it then we can get a Payload Folder which contain app  In this case we don t need  dSYM file    Note  This can only work if the app binary does not have symbols stripped  By default release builds stripped the symbols  We can change it in project build settings  Strip Debug Symbols During Copy  to NO   More details see this post

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I found out most of proposed alternatives did not work in latest XCode  tested with Xcode 10   For example  I had no luck drag-dropping  crash logs in Xcode -  Organizer -  Device logs -view   I recommend using Symbolicator tool https   github com agentsim Symbolicator   Git clone Symbolicator repository and compile and run with Xcode Copy  crash file  ascii file  with stack trace in begging of file  and  xarchive of crashing release to same temporarly folder Drag and drop  crash file to Symbolicator icon in Dock In 5-30 secs symbolicated crash file is produced in same folder as  crash and  xarchive are

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Even though I had been developing apps for a few years now  this was my first time debugging a binary and I felt like a complete NOOB figuring out where all the files were i e  where is   app   dSYM and crash logs   I had to read multiple posts in order to figure it out  Picture is worth a thousand words and I hope this post helps anyone else in future   1- First go to itunesconnect and download your crash logs   NOTE  Is most cases you may get something like  Too few reports have been submitted for a report to be shown   Basically not enough users have submitted crash log reports to Apple in which case you can t do much of anything at that point       2- Now if you had not changed your code since you had submitted your binary it to Apple then Launch Xcode for that project and do Product --  Archive again  Otherwise just find your latest submitted binary and right click on it

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The magical Xcode Organizer isn t that magical about symbolicating my app  I got no symbols at all for the crash reports that I got back from Apple from a failed app submission    I tried using the command-line  putting the crash report in the same folder as the  app file  that I submitted to the store  and the  dSYM file     symbolicatecrash  My App date blahblah-iPhone crash   My App app    This only provided symbols for my app and not the core foundation code  but it was better than the number dump that Organizer is giving me and was enough for me to find and fix the crash that my app had  If anyone knows how to extend this to get Foundation symbols it would be appreciated

User · Answer

Just a simple and updated answer for xcode 6 1 1    STEPS  1 Xcode Window Devices   2 Select a device from a list of devices under DEVICES section   3 Select View Device Logs   4 Under the All Logs section you can directly drag drop the report crash   5 Xcode will automatically Symbolicate the crash report for you   6 You can find the Symbolicated crash report by matching its Date Time with the Date Time mentioned in your crash report

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Using Xcode 4  the task is even simpler    open Organizer  click on Library    Device Log in the left column click on  Import  button on the bottom of the screen      and voil    The log file is imported and Symbolized automatically for you   Provided you Archived the build using Xcode -  Product -  Archive first

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In order to symbolicate crashes  Spotlight must be able to find the  dSYM file that was generated at the same time the binary you submitted to Apple was  Since it contains the symbol information  you will be out of luck if it isn t available

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We use Google Crashlytics to supervise crash logs  the feeling is very timely and convenient to use   Document links  https   docs fabric io apple crashlytics missing-dsyms html missing-dsyms  All about Missing dSYMs Fabric includes a tool to automatically upload your project   s dSYM  The tool is executed through the  run script  which is added to your Run Script Build Phase during the onboarding process  There can be certain situations however  when dSYM uploads fail because of unique project configurations or if you   re using Bitcode in your app  When an upload fails  Crashlytics isn   t able to symbolicate and display crashes  and a    Missing dSYM    alert will appear on your Fabric dashboard   Missing dSYMs can be manually uploaded following the steps outlined below   Note  As an alternative to the automated dSYM upload tool  Fabric provides a command-line tool  upload-symbols   that can be manually configured to run as part of your project   s build process  See the upload-symbols section below for configuration instructions

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I got a bit grumpy about the fact nothing here seems to  just work  so I did some investigating and the result is   Set up  QuincyKit back end that receives reports  No symbolication set up as I couldn t even begin to figure out what they were suggesting I do to make it work   The fix  download crash reports from the server online  They re called  crash  and by default go into the   Downloads  folder  With that in mind  this script will  do the right thing  and the crash reports will go into Xcode  Organizer  device logs  and symbolication will be done   The script      bin bash   Copy crash reports so that they appear in device logs in Organizer in Xcode  if     -e   Downloads crash    then     echo  Download a crash report and save it as  HOME Downloads crash before running this script      exit 1 fi  cd   Library Logs CrashReporter MobileDevice  mkdir -p actx   add crash report to xcode abbreviated cd actx  datestr  date    Y- m- d- H M S    mv   Downloads crash  actx-app   datestr  actx crash    Things can be automated to where you can drag and drop in Xcode Organizer by doing two things if you do use QuincyKit PLCR    Firstly  you have to edit the remote script admin actionapi php  line 202  It doesn t seem to get the timestamp right  so the file ends up with the name  crash  which Xcode doesn t recognize  it wants something dot crash    header  Content-Disposition  attachment  filename  crash   timestamp   crash       Secondly  in the iOS side in QuincyKit BWCrashReportTextFormatter m  line 176  change    TODO   to   TODO  to get around the bad characters

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After reading all these answers here in order to symbolicate a crash log  and finally succeeding  I think there are some points missing here that are really important in order to determine why the invocation of symbolicatecrash does not produce a symbolicated output   There are 3 assets that have to fit together when symbolicating a crash log    The crash log file itself  i e  example crash   either exported from XCode s organizer or received from iTunes Connect  The  app package  i e  example app  that itself contains the app binary belonging to the crash log  If you have an  ipa package  i e  example ipa  then you can extract the  app package by unzipping the  ipa package  i e  unzip example ipa   Afterwards the  app package resides in the extracted Payload  folder  The  dSYM package containing the debug symbols  i e  example app dSYM    Before starting symbolication you should check if all those artifacts match  which means that the crash log belongs to the binary you have and that the debug symbols are the ones produced during the build of that binary   Each binary is referred by a UUID that can be seen in the crash log file       Binary Images  0xe1000 -    0x1f0fff  example armv7   lt aa5e633efda8346cab92b01320043dc3 gt   var mobile Applications 9FB5D11F-42C0-42CA-A336-4B99FF97708F example app example 0x2febf000 - 0x2fedffff  dyld armv7s   lt 4047d926f58e36b98da92ab7a93a8aaf gt   usr lib dyld       In this extract the crash log belongs to an app binary image named example app example with UUID aa5e633efda8346cab92b01320043dc3   You can check the UUID of the binary package you have with dwarfdump   dwarfdump --uuid example app example UUID  AA5E633E-FDA8-346C-AB92-B01320043DC3  armv7  example app example   Afterwards you should check if the debug symbols you have also belong to that binary   dwarfdump --uuid example app dSYM UUID  AA5E633E-FDA8-346C-AB92-B01320043DC3  armv7  example app dSYM Contents Resources DWARF example   In this example all assets fit together and you should be able to symbolicate your stacktrace   Proceeding to the symbolicatecrash script   In Xcode 8 3 you should be able to invoke the script via   Applications Xcode app Contents SharedFrameworks DVTFoundation framework Versions A Resources symbolicatecrash -v example crash 2 gt  symbolicate log   If it is not there you may run a find   -name symbolicatecrash in your Xcode app directory to find it   As you can see there are no more parameters given  So the script has to find your application binary and debug symbols by running a spotlight search  It searches the debug symbols with a specific index called com apple xcode dsym uuids  You can do this search yourself   mdfind  com apple xcode dsym uuids        resp   mdfind  com apple xcode dsym uuids    AA5E633E-FDA8-346C-AB92-B01320043DC3    The first spotlight invocation gives you all indexed dSYM packages and the second one gives you the  dSYM packages with a specific UUID  If spotlight does not find your  dSYM package then symbolicatecrash will neither  If you do all this stuff e g  in a subfolder of your   Desktop spotlight should be able to find everything   If symbolicatecrash finds your  dSYM package there should be a line like the following in symbolicate log    dsym paths      lt SOME PATH gt  example app dSYM Contents Resources DWARF example     For finding your  app package a spotlight search like the following is invoked by symbolicatecrash   mdfind  kMDItemContentType    com apple application-bundle  amp  amp   kMDItemAlternateNames     example app     kMDItemDisplayName     example     kMDItemDisplayName     example app      If symbolicatecrash finds your  app package there should be the following extract in symbolicate log   Number of symbols in  lt SOME PATH gt  example app example  2209   19675   21884 Found executable  lt SOME PATH gt  example app example -- MATCH   If all those resources are found by symbolicatecrash it should print out the symbolicated version of your crash log    If not you can pass in your dSYM and  app files directly   symbolicatecrash -v --dsym  lt SOME PATH gt   lt App URI gt  app dSYM  lt APP NAME gt  app dsym  lt CRASHFILE gt   lt SOME OTHER PATH gt   lt APP NAME gt  app  lt APP NAME gt   gt  symbolicate log   Note  The symbolicated backtrace will be output to terminal  not symbolicate log

User · Answer

Here s another issue I have with symbolicatecrash     it won t work with Apps that have spaces in their bundle  i e   Test App app    Note I don t think you can have spaces in their name when submitting so you should remove these anyway  but if you already have crashes that need analysing  patch symbolicatecrash  4 3 GM  as such   240c240  lt          my  cmd    mdfind   kMDItemContentType    com apple application-bundle  amp  amp  kMDItemFSName     exec name app     ---  gt          my  cmd    mdfind   kMDItemContentType    com apple application-bundle  amp  amp  kMDItemFSName      exec name app      251c251  lt              my  cmd    find    archive path Products   -name  exec name app   ---  gt              my  cmd    find    archive path Products   -name    exec name app

User · Answer

In my case  I was dragging crash reports directly from Mail to the Organizer  For some reason  that prevented the crash reports from getting symbolicated  I d love to know why     Copying the crash reports to the Desktop first  and then dragging them from there to the Organizer got them symbolicated properly   Very specific case  I know  But thought I d share just in case

User · Answer

I use Airbrake in my apps  which does a fairly good job of remote error logging    Here s how I symbolicate them with atos if the backtrace needs it    In Xcode  4 2  go to the organizer  right click on the archive from which the  ipa file was generated   In Terminal  cd into the xcarchive for instance MyCoolApp 10-27-11 1 30 PM xcarchive Enter the following atos -arch armv7 -o  MyCoolApp app   MyCoolApp   don t forget the single quotes  I don t include my symbol in that call  What you get is a block cursor on an empty line   Then I copy paste my symbol code at that block cursor and press enter   You ll see something like   - MyCoolVC dealloc   in MyCoolApp   MyCoolVC m 34  You re back to a block cursor and you can paste in other symbols      Being able to go through your backtrace one item without re-entering the first bit is a nice time saver    Enjoy

User · Answer

I prefer a script that will symbolicate all my crash logs   Preconditions  Create a folder and put there 4 things    symbolicatecrash perl script - there are many SO answers that tells it s location The archive of the build that match the crashes  from Xcode Organizer  simple as Show in Finder and copy   I don t sure this is necessery  All the xccrashpoint packages -  from Xcode Organizer  Show in Finder  you may copy all the packages in the directory  or the single xccrashpoint you would like to symbolicate  Add that short script to the directory      bin sh  echo  cleaning old crashes from directory  rm -P   crash rm -P   xccrashpoint rm -r allCrashes echo  removed   echo    echo  --- START ---  echo     mkdir allCrashes mkdir symboledCrashes find  ls -d   xccrashpoint  -name    crash  -print -exec cp    allCrashes      cd allCrashes for crash in   crash  do        symbolicatecrash  crash  gt     symboledCrashes V crash done cd     echo    echo  --- DONE ---  echo       The Script  When you run the script  you ll get 2 directories    allCrashes - all the crashes from all the xccrashpoint will be there  symboledCrashes - the same crashes but now with all the symbols  you DON T need to clean the directory from old crashes before running the script  it will clean automatically  good luck

User · Answer

The combination that worked for me was    Copy the dSYM file into the directory where the crash report was Unzip the ipa file containing the app   unzip MyApp ipa   Copy the application binary from the resulting exploded payload into the same folder as the crash report and symbol file  Something like  MyApp app MyApp   Import or Re-symbolicate the crash report from within Xcode s organizer   Using atos I wasn t able to resolve the correct symbol information with the addresses and offsets that were in the crash report  When I did this  I see something more meaningful  and it seems to be a legitimate stack trace

User · Answer

With the latest version of Xcode  3 2 2   you can drag and drop any crash reports into the Device Logs section of the Xcode Organiser and they will automatically by symbolicated for you   I think this works best if you built that version of the App using Build  amp  Archive  also part of Xcode 3 2 2

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For those using Airbrake  there s a solid response above but it wouldn t work for me without tweaking    Works for some memory addresses but not others  not sure why      Create new dir on desktop or wherever Find archive in question in Xcode organizer Double tap to reveal in finder Double tap to show bundle contents Copy  dSYM file and  app file into new dir cd into new dir Run this command  atos -arch armv7 -o  Vimeo app   Vimeo  Terminal will enter an interactive move Paste in memory address and hit enter  it will output method name and line number Alternatively  enter this command  atos -arch armv7 -o  Vimeo app   Vimeo   To get info for one address only

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Steps to symbolicate a crash report automatically using XCode   UPDATED FOR XCODE 9   Connect any iOS device to your Mac  yes a physical one  yes I know this is stupid  Choose  Devices  from the  Window  menu  Click your device on the left and VIEW DEVICE LOGS on the right  Wait  It might take a minute to show up  Maybe doing Command-A then Delete will speed this up  Critical undocumented step  rename the crash report that you got from iTunesConnect from  txt extension to  crash extension Drag the crash report into that area on the left    And then Xcode will symbolicate the crash report and display the results   Source  https   developer apple com library ios technotes tn2151  index html

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I like to use Textwrangler to pinpoint errors in an original app upload binary rejection   The crash data will be found in your itunesConnect account    Using Sachin s method above I copy the original crash to TextWrangler  then copy the symbolicatecrash file I ve created to another TextWrangler file  Comparing the two files pinpoints differences  The symbolicatecrash file will have differences which point out the file and line number of problems

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atos is being deprecated so if you are running OSX 10 9 or later you may need to run  xcrun atos     Warning   usr bin atos is moving and will be removed from a future OS   X release  It is now available in the Xcode developer tools to be   invoked via  xcrun atos

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I did this successfully  using the following steps   Step 1  Create a folder in desktop  I give name it to  CrashReport  and put three files   MYApp app    MyApp app dSYM    MYApp 2013-07-18 crash   in it   Step 2  Open Finder and go to Applications  where you will find the Xcode application  right click on this and Click  Show Package Contents   after this follow this simple path    Contents- Developer- Platforms- iPhoneOS platform- Developer- Library- PrivateFrameworks- DTDeviceKit framework- Versions- A- Resources   OR    Contents- Developer- Platforms- iPhoneOS platform- Developer- Library- PrivateFrameworks- DTDeviceKitBase framework- Versions- A- Resources   OR  For Xcode 6 and above the path is Applications Xcode app Contents SharedFrameworks DTDeviceKitBase framework Versions A Resources  Where you find  symbolicatecrash  file  copy this and paste it to  CrashReport  folder   Step 3  launch the terminal  run these 3 Command   cd   Users mac38 Desktop CrashReport and  press Enter button export DEVELOPER DIR   Applications Xcode app Contents Developer  and press Enter   symbolicatecrash -A -v MYApp 2013-07-18 crash MyApp app dSYM and press Enter Now its Done     NOTE  versions around 6 4 or later do not have the -A option -- just leave it out

User · Answer

In Xcode 4 2 1  open Organizer  then go to Library Device Logs and drag your  crash file into the list of crash logs  It will be symbolicated for you after a few seconds    Note that you must use the same instance of Xcode that the original build was archived on  i e  the archive for your build must exist in Organizer

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I had to do a lot of hacking of the symbolicatecrash script to get it to run properly   As far as I can tell  symbolicatecrash right now requires the  app to be in the same directory as the  dsym   It will use the  dsym to locate the  app  but it won t use the dsym to find the symbols   You should make a copy of your symbolicatecrash before attempting these patches which will make it look in the dsym   Around line 212 in the getSymbolPathFor dsymUuid function  212     my  executablePath   grep   -e  amp  amp    -d   glob   dsymdir      Contents Resources DWARF      executable     Around line 265 in the matchesUUID function  265             return 1

[ios] Symbolicating iPhone App Crash Reports

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