我正在试用带有实时预览的 SwiftUI。当我在模拟器上测试 ui 时，一切都很顺利，但是当我尝试在真实设备上使用实时预览时，它立即崩溃了。
我得到错误：Cannot preview in this file - Update failed
在诊断中：
PotentialCrashError: Update failed
[AppNAme].app may have crashed. Check ~/Library/Logs/DiagnosticReports for any crash logs from
your application.
这个看起来很奇怪的日志：
Error Domain=com.apple.dt.UITestingAgent Code=-1 "failed to load library at path
"/private/var/mobile/Containers/Data/Application/7F8714DD-B929-4D68-81F2-
5AF69FA9B002//tmp/74370CA4-397B-4477-9239-2DBC7CC4943D-ContentView.2.preview-thunk.dylib":
Optional(dlopen(/private/var/mobile/Containers/Data/Application/7F8714DD-B929-4D68-81F2-
5AF69FA9B002/tmp/74370CA4-397B-4477-9239-2DBC7CC4943D-ContentView.2.preview-thunk.dylib,
0x0002): code signature invalid (errno=1) sliceOffset=0x00000000, codeBlobOffset=0x00011550,
codeBlobSize=0x00004A50 for '/private/var/mobile/Containers/Data/Application/7F8714DD-B929-4D68-
81F2-5AF69FA9B002/tmp/74370CA4-397B-4477-9239-2DBC7CC4943D-ContentView.2.preview-thunk.dylib')"
UserInfo={NSLocalizedDescription=failed to load library at path
"/private/var/mobile/Containers/Data/Application/7F8714DD-B929-4D68-81F2-
5AF69FA9B002//tmp/74370CA4-397B-4477-9239-2DBC7CC4943D-ContentView.2.preview-thunk.dylib":
Optional(dlopen(/private/var/mobile/Containers/Data/Application/7F8714DD-B929-4D68-81F2-
5AF69FA9B002/tmp/74370CA4-397B-4477-9239-2DBC7CC4943D-ContentView.2.preview-thunk.dylib,
0x0002): code signature invalid (errno=1) sliceOffset=0x00000000, codeBlobOffset=0x00011550,
codeBlobSize=0x00004A50 for '/private/var/mobile/Containers/Data/Application/7F8714DD-B929-
4D68-81F2-5AF69FA9B002/tmp/74370CA4-397B-4477-9239-2DBC7CC4943D-ContentView.2.preview-
thunk.dylib')}