Xcode 11:代码更改未更新到应用程序或断点不起作用 [英] Xcode 11: Changes in code not updated to app or breakpoint doesn't work

问题描述

XCode:11.1 作业系统:10.15 测试设备:iPhone 5s，iOS:12.4.2

XCode: 11.1 OS: 10.15 Test device: iPhone 5s, iOS: 12.4.2

大家好， 我犯了一个愚蠢的错误，立即升级Xcode和MacOS，而没有等待以后的稳定版本.

Hi guys, I made a stupid mistake to immediately upgrade Xcode and MacOS, without waiting for a later stable version.

无论如何，如果我在代码中进行了更改，例如添加了NSLog()行，则此添加项不会在测试设备中的应用程序上更新.为了使其正常工作，我必须从测试设备上卸载该应用程序，然后通过运行Xcode中的代码来重新安装该应用程序. 每当我更改代码时都会发生这种情况.我必须删除设备上的应用，然后重新安装.

Anyway, if I made changes in my code, for example adding a NSLog() line, this addition is not updated on the app in my test device. To make it work, I have to uninstall the app from the test device, and reinstall it by running the code from Xcode. This happens every time I make changes in code. I have to delete the app on the device and reinstall it again.

我正在互联网上寻找解决方案，但没有找到任何解决方案. 我认为这是一个Xcode错误，但是如果您有同样的问题，我也很好奇.如果希望有人可以快速解决问题.

I was looking for a solution on the internet, but didn't find any. I assume this is a Xcode bug, but I'm also curious if you have the same problem. If hope someone has a quick fix.

更新1 在模拟器上可以正常运行.

Update 1 On the simulator it works ok.

推荐答案

尝试将Build System更改为Legacy:

File> Project Settings> Build System

新的构建系统在应用程序缓存方面存在一些问题.

The new Build System has some problems with app cache.

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