iOS simulator change os version

iOS simulator change os version

version bug

Recovery Suggestion: xgqfrms's MacBook Pro runs macOS 10.15.7, which is lower than test-app’s minimum deployment target of 11.0.
Change your project’s minimum deployment target or upgrade xgqfrms's MacBook Pro’s version of macOS.

deployment target

1. change the target version

2. download simulators

https://stackoverflow.com/questions/40666250/how-do-i-change-the-ios-version-for-the-simulator

How do I downgrade the simulator in Xcode?

https://developer.apple.com/forums/thread/110911

My app is working as expected in the simulator on iOS 12.1, but not on my iOS 11.x device, and it is just a layout issue. I'm not aware of any major changes in layout constraints from 11 to 12, so I'm perplexed... I upgraded an older device from iOS 10 to 12 and my app layout works on it, so it seems something changed between iOS 11 and 12 regarding layout, but I don't know what that is...

How can I get a simulator running iOS 11.x to debug? I'll start debugging on my actual 11.x device, but I would also like to know how to get a simulator running older iOS versions? xcodebuild -showsdks says I only have 12.1 iphone/simulator 12.1 -- how do I run 11.x in the simulator, or older iOS versions in general in the simulator?

我的应用程序可以在iOS 12.1上的模拟器中按预期运行，但不能在iOS 11.x设备上运行，这仅仅是布局问题。 我不知道布局限制会从11更改为12的任何重大变化，因此感到困惑……我将旧设备从iOS 10升级到了12，并且我的应用程序布局也可以正常运行，因此iOS之间似乎有所变化 11和12关于布局，但是我不知道那是什么...

如何获得运行iOS 11.x的模拟器进行调试？ 我将在实际的11.x设备上开始调试，但我也想知道如何获得运行旧版iOS的模拟器？ xcodebuild -showsdks说我只有12.1 iphone /模拟器12.1-如何在模拟器中运行11.x，或者在模拟器中运行旧的iOS版本？

React Native

https://medium.com/@SatoshiTahara/how-to-choose-simulator-ios-version-with-react-native-e2465ea289da

refs

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