Xcode报错：Command CodeSign failed with a nonzero exit code

构建Xcode应用时，发现Xcode提示小组件存在报错：

Command CodeSign failed with a nonzero exit code

查看详细报错为：

CodeSign /Users/fangjunyu/.../Frameworks/WidgetKit.framework/Versions/A (in target 'BankletWidgetExtension' from project 'piglet')
    cd /Users/fangjunyu/Downloads/iOS应用-存钱猪猪tmp/Banklet
    
    Signing Identity:     "Apple Development: junyu fang (D...S)"
    Provisioning Profile: "Mac Catalyst Team Provisioning Profile: com.fangjunyu.piglet.BankletWidget"
                          (2f…71e)
    
    /usr/bin/codesign --force --sign CC1...FE0 -o runtime --timestamp\=none --preserve-metadata\=identifier,entitlements,flags --generate-entitlement-der /Users/fangjunyu/.../Frameworks/WidgetKit.framework/Versions/A
/Users/fangjunyu/.../Frameworks/WidgetKit.framework/Versions/A: bundle format unrecognized, invalid, or unsuitable
Command CodeSign failed with a nonzero exit code

问题原因在于，把系统Framework（WidgetKit.framework）当成“可嵌入 Framework”去重新 codesign 了，这是不允许的。

因为WidgetKit.framework 是 Apple 系统 Framework，它只应该存在于 /System/Library/Frameworks，绝对不允许被 Embed，也不允许被重新 codesign。

所以codesign会报错：

bundle format unrecognized, invalid, or unsuitable

解决方案：将Embed改为“Do Not Embed”。