After modifying system headers, please delete the module cache at '/Users/XXX/Library/Developer/Xcode/DerivedData/XXXX/2ZMDAUJMMHSDC' 解决的方法:前往 '/Users/XXX/Library/Developer/Xcode/DerivedData/XXX/2ZMDAUJMMHSDC 这个目录,删除其目录中的内容.然后执行app,没问题了,注意不是删除 2NEVAP…