clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)

Developer Tools & Services Xcode
Sushmitha_asokan OP
Created Jun ’21
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Hello Team, I am facing the clang error when I am trying to run the source in Xcode 12.5 BUT it is working fine in 11.4

In file included from :1: PrefixHeader.pch:15:2: fatal error: malformed or corrupted AST file: 'mismatched umbrella headers in submodule' #import <FAPL/FAPL.h> ^

clang: error: unable to execute command: Segmentation fault: 11 clang: error: clang frontend command failed due to signal (use -v to see invocation) Apple clang version 12.0.0 (clang-1200.0.32.29) Target: x86_64-apple-ios10.0-simulator Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin clang: note: diagnostic msg: PLEASE submit a bug report to http://developer.apple.com/bugreporter/ and include the crash backtrace, preprocessed source, and associated run script. clang: error: unable to execute command: Segmentation fault: 11 clang: note: diagnostic msg: Error generating preprocessed source(s).

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DTS Engineer OP
Apple
Jun ’21

This is a crash in the complier, and you should follow through with the instructions in the error message to file a bug report. Please post the FB number here once you've done so.

How is this Xcode version installed? And what is it compiling, a target in a project, or is this from a command in a shell script that's part of your build? The clang version number in this error, Apple clang version 12.0.0 (clang-1200.0.32.29), does not reflect the right version number for Xcode 12.5.

0
Sushmitha_asokan OP
Nov ’21

How to find FB number?

0
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
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