gistfile1.txt

Now and then I need to manually symbolicate an Xcode crash report.  Xcode can often do this, but not always.  Here are steps that are specifically for a Watch Extension, but can be easily applied to just about anything.

You need the Watch Extension's dSYM from the archive created when you submitted the app.  The general form:
 
    $ symbolicatecrash report.crash app.dSYM
 
or more specifically, for a WatchKit Extension:
    $ export DEVELOPER_DIR=`xcode-select --print-path` 
    $ /Applications/Xcode.app/Contents/SharedFrameworks/DTDeviceKitBase.framework/Versions/A/Resources/symbolicatecrash ~/Desktop/CrashLog1.crash ~/Desktop/yourApp.xcarchive/dSYMs/yourApp\ WatchKit\ Extension.appex.dSYM > ~/Desktop/CrashLog1Symbolicated.crash
 
The above symbolicates the crash file "CrashLog1.crash" (located on your Desktop) with a WatchKit Extension named "yourApp WatchKit Extension" within the application archive "yourApp" (also located on your Desktop), and puts the symbolicated crash report into CrashLog1Symbolicated.crash (Again, on your Desktop).
 
The above path for symbolicatecrash assumes Xcode 6.3.  The symbolicatecrash tool has moved around between versions.  If this doesn't work in some other version, use:
    $ find /Applications/Xcode.app -name symbolicatecrash
to find it.