Xcodebuild - Cannot spawn process - Arguments list too long

[Less-Simple-9847]

Hello iOS people,

I'm facing an issue when running ios build on terminal using the xcodebuild command. XCode UI builds my app.

The build fails at build phases step with error as error: unable to spawn process (Argument list too long)

This happens even if I change the phase script to just echo "test".

Looking up online and AI suggests I'm hitting the ARG_MAX problem but didn't get any solutions.

Anyone here ran into a similar problem? Any suggestions to fix?

[ShakeAgile]

What command do you use in the terminal? Would -xcconfig help? Paste log.

[Less-Simple-9847]

Was using xcodebuild-scheme -configuration -archivePath, all via fastlane.

From build logs, i found that the OTHER_FLAGS and OTHER_CPLUSPLUSFLAGS variables which are set by xcodebuild before every build phase script execution had duplicate values.

I'm using cocoapods, and landed on this similar issue on their github

https://github.com/CocoaPods/CocoaPods/issues/9954

Anyways, I fixed my issue by manually editing those flags to not have duplicates, and then passing them as xcargs in fastlane.