An empty identity is not valid when signing a binary for the product type 'Dynamic Library'

现象

M2 Max Mac + Xcode 14.3.1中，新建iOSOpenDev项目，去Build编译，报错：

An empty identity is not valid when signing a binary for the product type 'Dynamic Library'

拷贝出的详细错误信息：

Build target HookWhatsApp of project HookWhatsApp with configuration Debug
error: An empty identity is not valid when signing a binary for the product type 'Dynamic Library'. (in target 'HookWhatsApp' from project 'HookWhatsApp')
...
An empty identity is not valid when signing a binary for the product type 'Dynamic Library'.

原因

• 不是很清楚
  • 只是大概知道，属于Xcode的自动管理codesign签名方面的问题

解决办法

• 思路1：禁用自动签名
• 思路2：给identity设置某个合适的值（这样就不是empty空了）

具体步骤

思路1：禁用自动签名

• Xcode->Project->{YourProjectName}->Build Settings->User-Defined->
  • (点击左上角的加号=➕->Add User-Defined Setting)
    • 
  • 新增选项:CODE_SIGNING_ALLOWED=NO
    • 
  • 额外说明
    • 如果还不行，多试几次Clean：
      • Xcode->Product->Clean Build Folders
      • Xcode->Product->Clean All Issues

思路2：给Identity设置某个合适的值

• Xcode->Project->{YourProjectName}->Build Settings->Signing->Code Sign Identity->设置为（Automatic中的）Apple Development
  • 

不要设置Code Sign Identity为Apple Development: xxx

此处之前设置了：

• Xcode->Project->{YourProjectName}->Build Settings->Signing->Code Sign Identity->设置为（Certificates in Keychain中的）Apple Development: Mao Li (UBFSP2P5PM)
  • 

结果会报错：

/Users/crifan/dev/dev_root/crifan/github/iOSOpenDevHookTemplate/iOSOpenDevHookTemplate/iOSOpenDevHookTemplate.xcodeproj iOSOpenDevHookTemplate has conflicting provisioning settings. iOSOpenDevHookTemplate is automatically signed, but code signing identity Apple Development: Mao Li (UBFSP2P5PM) has been manually specified. Set the code signing identity value to "Apple Development" in the build settings editor, or switch to manual signing in the Signing & Capabilities editor.

然后改为上面说的（Automatic中的）Apple Development，才彻底解决了此处报错的问题。