无法使用xcode打出ipa包的解决方法

使用xcode archive无法打出正确的ipa包，类型变为Generic Xcode Archive，而不是iOS App Archive，找到的解决方式

Check Build Settings:

1. Skip install is NO for the main project target
2. Skip install is YES for framework (sub-projects) targets
3. In Build Phases for sub-projects, Copy Headers needs to be in Project, not Public (does not apply if building static library)
4. Installation Directory under Deployment is valid (/Applications for example)