Build fails because of "UnityEngineCloud"

Anyone knows what this means and why it’s there? I have no mention of “UnityEngineCloud” anywhere in the project’s c# code or other text files.

Unity-iPhone.build/Objects-normal/arm64/UnityEngineCloudiOS.dia -c /Volumes/MEGA/PROJECTS/McDROID\ 5.5/Assets/Plugins/iOS/UnityEngineCloudiOS.mm -o /Users/laurent/Library/Developer/Xcode/DerivedData/Unity-iPhone-dsfdvxwkukhsmthepnpoiddxcxzi/Build/Intermediates/Unity-iPhone.build/ReleaseForRunning-iphoneos/Unity-iPhone.build/Objects-normal/arm64/UnityEngineCloudiOS.o

clang: error: no such file or directory: '/Volumes/MEGA/PROJECTS/McDROID 5.5/Assets/Plugins/iOS/UnityEngineCloudiOS.mm'
clang: error: no input files
Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 1

do you have any post processing that modifies the Xcode project and “inject” that info ?

no, I cleaned the xcode project then rebuilt from scratch and now the error is gone. What I think happened is during append, some of the dll I deleted didn’t register as deleted so they still polluted the xcode project

Yes, could be. There were bugs like this in the past.

I always build to a clean folder to avoid these things.