Linker error: ld: symbol(s) not found for architecture x86_64
问题 I'm trying to run my UITests target in Xcode 9.1. The actual app runs, but the UITests target is giving me this error. I've tried restarting, reinstalling pods, updating pods, changing various build settings, deleting and relinking frameworks. Any ideas? Undefined symbols for architecture x86_64: "__T010LearnerLog8DurationCMa", referenced from: __T017LearnerLogUITests21testAddPreviousDrivesC0deF5DriveyyF in testAddPreviousDrives.o ld: symbol(s) not found for architecture x86_64 clang: error: