问题
I'm having an annoying problem with Xcode. I can't run the projects and it gives me back the same error every time:
ld: file not found: /Users/DagDigg/Library/Developer/Xcode/DerivedData/Roundy2-dtzcccrlvjvoxsapfbdzchhtuivr/Build/Intermediates/Roundy2.build/Debug-iphoneos/Roundy2.build/Objects-normal/arm64/AppDelegate.o
clang: error: linker command failed with exit code 1 (use -v to see invocation)
I'm unable to run every project. Even if I create an empty one...
I'm using Xcode 7 beta 3 and an iPhone with iOS 9 beta 4.
回答1:
Sometimes it's helpful to quit Xcode and erase the files in your DeriveData folder at
~/Library/Developer/Xcode/DerivedData
回答2:
I've also fixed this issue by going to Product -> Clean in XCode. This might erase the files in the files in the Derived Data folder in the process.
回答3:
Clean build folder + Rebuild the project worked for me.
Step 1: product -> Clean Build Folder
Step 2: product -> Build
回答4:
Usualy this issue occur while you run your project on simulator devices , and simply you can remove DerivedData folder to pass this
But i suggest you to use real devices 🤞🏻
回答5:
Maybe double-check the Xcode file you are running. Close the Xcode project then be sure to open the <projectname>.xcworkspace file.
If you are using cocoapods, the error can be from trying to build from the .xcodeproj file instead of the .xcworkspace file generated by the pod install.
"Open the MyApp.xcworkspace that was created. This should be the file you use everyday to create your app." - guides.cocoapods.org/using/using-cocoapods
来源：https://stackoverflow.com/questions/31592670/xcode-linker-command-failed-with-exit-code-1