我一直在慢慢更新一个旧的项目,突然开始从特拉维斯·CI那里得到这个错误。
2018-05-20 13:32:21.393 xcodebuild[1348:5913] Error Domain=IDETestOperationsObserverErrorDomain Code=4 "Test operation was canceled. If you believe this error represents a bug, please attach the log file at /Users/travis/Library/Developer/Xcode/DerivedData/CF