xcode模拟器没有出现 - 重新安装可能吗？

I ran out of disk space and had to clean up the folders on my hard disk. After the cleanup, when I run Xcode, the simulator is not coming up. I am not able to select a simulator to run, on Xcode. Most likely I deleted some folder required by simulator, in my cleanup. Xcode runs onto the device correctly. Anybody came across such a situation?I ran out of disk space and had to clean up the