今天升级了XCode14后发现真机测试的时候会打印如下错误，并加载几分钟后才能把程序运行起来。
warning: libobjc.A.dylib is being read from process memory. This indicates that LLDB could not find the on-disk shared cache for this device. This will likely reduce debugging performance.
这是由于升级了XCode14后符号表不一致导致的。
解决办法：
在Finder中前往"~/Library/Developer/Xcode/iOS DeviceSupport"文件夹，找到你当前运行的真机系统对应的文件夹，删掉，然后重新拔插手机，等待XCode重新fetch symbol即可。
