Step 1: Use the following command in Terminal to find the dSYM on your Mac which build the app
mdfind "com_apple_xcode_dsym_uuids == 12345678-90AB-CDEF-1234-567890ABCDEF"
The string "12345678-90AB-CDEF-1234-567890ABCDEF" is the UUID string from the crash report reformatted to uppercase and 8-4-4-4-12 groups.
Step 2: Symobolicate Crash Report. Excute the following line before symbolicating