Code Sign Error 错误怎么解决啊

做cocos开发，程序build后提示
Code Sign Error Group
Command /usr/bin/codesign failed with exit code 1
详细页
CodeSign /Users/leixiaokun/Library/Developer/Xcode/DerivedData/GameBase-bkmsmjurbrquakcnrxnqtryejskw/Build/Products/Debug-iphonesimulator/GameBase-mobile.app
    cd /Users/leixiaokun/Downloads/90Game_WZ/proj.ios_mac
    export CODESIGN_ALLOCATE=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/codesign_allocate
    export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    
Signing Identity:     "-"    /usr/bin/codesign --force --sign - --timestamp=none /Users/leixiaokun/Library/Developer/Xcode/DerivedData/GameBase-bkmsmjurbrquakcnrxnqtryejskw/Build/Products/Debug-iphonesimulator/GameBase-mobile.app/Users/leixiaokun/Library/Developer/Xcode/DerivedData/GameBase-bkmsmjurbrquakcnrxnqtryejskw/Build/Products/Debug-iphonesimulator/GameBase-mobile.app: code object is not signed at all
In subcomponent: /Users/leixiaokun/Library/Developer/Xcode/DerivedData/GameBase-bkmsmjurbrquakcnrxnqtryejskw/Build/Products/Debug-iphonesimulator/GameBase-mobile.app/Android.mk
Command /usr/bin/codesign failed with exit code 1是什么原因呢？怎么解决，求高手解答！