clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Solution 1
I got this error when i was archiving my app with xcode - while running on sim and physical device worked -, but had my physical device still selected as a scheme. Solution worked for me: clean build folder, and select 'Generic IOS Device' as the scheme.
Solution 2
Delete ~/Library/Developer/Xcode/DerivedData
worked for me.
Issue is due to cache, since your using pods - you need to remove old references
Solution 3
Delete ~/Library/Developer/Xcode/DerivedData
worked for me.
Solution 4
This has been driving me nuts and I still can not pinpoint the reason for the crash. But a few of these steps or a combination of these seems to remedy it in the meanwhile.
- Try doing a clean build.
- Run
pod install
/pod deintegrate
. - Run
npm install
if you are working on a react native app after deletingnode_modules
- Close xcode and then delete
~/Library/Developer/Xcode/DerivedData
- If nothing works try restarting the system.
Admin
Updated on June 05, 2022Comments
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Admin almost 2 years
I don't know what causes it.
It does not happen at iPhone 5 and simulators. It have been happened only my original device iPhone 7.
fatal error: error in backend: Error while trying to spill X0 from class GPR64: Cannot scavenge register without an emergency spill slot! clang: error: clang frontend command failed with exit code 70 (use -v to see invocation) Apple LLVM version 9.0.0 (clang-900.0.34.1) Target: aarch64-apple-darwin16.7.0 Thread model: posix InstalledDir: /Applications/Xcode-beta.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: note: diagnostic msg: ******************** PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT: Preprocessed source(s) and associated run script(s) are located at: clang: note: diagnostic msg: /var/folders/xg/tgwkzqt15xd9jprnv9f0gn4c0000gn/T/CityArray-6e6c1e.m clang: note: diagnostic msg: /var/folders/xg/tgwkzqt15xd9jprnv9f0gn4c0000gn/T/CityArray-6e6c1e.cache clang: note: diagnostic msg: /var/folders/xg/tgwkzqt15xd9jprnv9f0gn4c0000gn/T/CityArray-6e6c1e.sh clang: note: diagnostic msg: Crash backtrace is located in clang: note: diagnostic msg: /Users/junhyun/Library/Logs/DiagnosticReports/clang_<YYYY-MM-DD-HHMMSS>_<hostname>.crash clang: note: diagnostic msg: (choose the .crash file that corresponds to your crash) clang: note: diagnostic msg: ********************
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Sam over 4 yearsthat worked for me, i have 2 iphones connected to the mac, unplug then clean and build works fine. plug back iphone and run and you are done. thanks a lot !!
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Shanteshwar Inde over 4 yearsPlease add more explanation why? how? this works for you. Thanks!
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Stas about 4 yearsI did everything suggested here and in other answers and it didn't help...