真机运行程序时出现：

Could not resize “/private/var/folders/k2/2cx937y169ndm0ltn6gzxfym0000gn/T/TemporaryItems/(A Document Being Saved By Xcode 2)/dyld_shared_cache_arm64” (No space left on device)  

解决办法：电脑空间不足，没办法运行程序了，至少留3G空间。