Reply to Unable to build project in Xcode 14.3 beta due to missing arc dir at /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib I am also facing the same prooblem and have tried several approaches to solve but failed. I hope that someone who's overcome or understand this problem share with us the solution. Developer Tools & Services Xcode Mar ’23