ios - 我在 xcode 中更改了我的应用程序的显示名称，它不再运行而不会崩溃

Question

在我尝试更改项目的显示名称后，每当我运行它时，它会在启动时崩溃并显示以下错误消息:

2020-03-23 19:32:05.010069+0200 Coronavirus Tool[10927:4335736] Unknown class _TtC8CoronaMT18TipsViewController in Interface Builder file. 2020-03-23 19:32:05.059007+0200 Coronavirus Tool[10927:4335736] Unknown class _TtC8CoronaMT24StatisticsViewController in Interface Builder file. 2020-03-23 19:32:05.061510+0200 Coronavirus Tool[10927:4335736] Unknown class _TtC8CoronaMT28RiskCalculatorViewController in Interface Builder file. 2020-03-23 19:32:05.063672+0200 Coronavirus Tool[10927:4335736] Unknown class _TtC8CoronaMT27NotificationsViewController in Interface Builder file. 2020-03-23 19:32:05.067168+0200 Coronavirus Tool[10927:4335736] Unknown class _TtC8CoronaMT18MoreViewController in Interface Builder file. 2020-03-23 19:32:05.131735+0200 Coronavirus Tool[10927:4335736] * Terminating app due to uncaught exception 'NSUnknownKeyException', reason: ‘[<UIViewController 0x101c0e820> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key blueButton.' * First throw call stack: (0x181086d8c 0x1802405ec 0x1810869f0 0x1819dc44c 0x18b1375a0 0x18b3097e4 0x180f94b24 0x18b3081f4 0x18b139aa8 0x18ad7d074 0x18aca1b14 0x18ad4fe1c 0x18ad4f2d8 0x18ad4ec14 0x18ad4e6a4 0x18ad423a8 0x18ac9a6f4 0x18520fe54 0x185213fe4 0x1851806c8 0x1851a81b0 0x18b084680 0x18102f2bc 0x18102ea7c 0x18102c7b0 0x180f4cda8 0x182f32020 0x18af6c758 0x100bc550c 0x1809ddfc0) libc++abi.dylib: terminating with uncaught exception of type NSException

我已经尝试在 info.plist 中添加 Bundle 显示名称，并将名称恢复到原来的样子，同时清理项目、重新启动 xcode 并删除应用程序/重新安装它。

有人可以帮我解决这个问题吗？？？

Answer 1

您在此错误中的线索是 blueButton .我的预感是 IBOutlet 有一个之前的 socket 仍然连接到 blueButton .检查您是否有两个 socket 连接到 blueButton .如果是这样，Xcode 会崩溃，因为它不知道要使用哪个 socket 。希望有帮助。