1.下载模拟器旧版本
2.找到新版Xcode存放模拟器sdk的地址:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Library/CoreSimulator/Profiles/Runtimes
如果地址不对,试试这个地址:
/Library/Developer/CoreSimulator/Profiles/Runtimes/
4.重启Xcode,这时应该在Xcode的Window-Devices 菜单下能够找到对应的模拟器了,到此,完成整个步骤。
如果没有这个目录,则创建一个
mkdir -p /Library/Developer/CoreSimulator/Profiles/Runtimes/