Some of my application's frames do not have file/line number information!

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Source file information comes from your dSYM files. 

If you see source file information in your crash reports but some of the frames are not annotated, it's likely that the source information isn't present in the dSYM generated by your application.

One common source of this issue is using static libraries. These tend to be built seperately and may not include the debug information needed to symbolicate your crash.

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