@xdf @yangyang506 @ok 请问下这个错要怎么解呢？谢谢
A shell task (/usr/bin/xcrun codesign --force --sign F241E5B352893895A20CCF39D73B6AC0F0B3F89D --preserve-metadata=identifier,entitlements /Users/kugou/Library/Developer/Xcode/DerivedData/XCTestWD-csksfttfbygcrbamoobfasiylmgb/Build/Products/Debug-iphoneos/XCTestWD.app/Frameworks/Swifter.framework) failed with exit code 1:
/Users/kugou/Library/Developer/Xcode/DerivedData/XCTestWD-csksfttfbygcrbamoobfasiylmgb/Build/Products/Debug-iphoneos/XCTestWD.app/Frameworks/Swifter.framework: unknown error -1=ffffffffffffffff

Command /bin/sh failed with exit code 1

2017-06-20 15:10:51.883 xcodebuild[60370:1208566] Error Domain=IDETestOperationsObserverErrorDomain Code=4 "Test operation was canceled. If you believe this error represents a bug, please attach the log file at /Users/kugou/Library/Developer/Xcode/DerivedData/XCTestWD-csksfttfbygcrbamoobfasiylmgb/Logs/Test/1C7E6532-35C7-48B8-9ACD-DA27D4139ACC/Session-XCTestWDUITests-2017-06-20_150947-W752l8.log" UserInfo={NSLocalizedDescription=Test operation was canceled. If you believe this error represents a bug, please attach the log file at /Users/kugou/Library/Developer/Xcode/DerivedData/XCTestWD-csksfttfbygcrbamoobfasiylmgb/Logs/Test/1C7E6532-35C7-48B8-9ACD-DA27D4139ACC/Session-XCTestWDUITests-2017-06-20_150947-W752l8.log}

Testing failed:
Command /bin/sh failed with exit code 1
** TEST FAILED **

The following build commands failed:
PhaseScriptExecution Run\ Script /Users/kugou/Library/Developer/Xcode/DerivedData/XCTestWD-csksfttfbygcrbamoobfasiylmgb/Build/Intermediates/XCTestWD.build/Debug-iphoneos/XCTestWD.build/Script-63D408691EAB64FC00198736.sh