iOS Simulator Is Not Launching

IOS simulator is not open

I am getting an error in Xcode 13.4 but when I download Xcode 13.2.1 issue is solved

Xamarin.forms iOS simulator not launching

I had an exact same problem. In my case, it helped to:

In Visual Studio, right click on iOS project -> Properties -> iOS Bundle Signing
For Debug | iPhoneSimulator configuration, change Bundle Signing scheme to the "Automatic Provisioning"
Click Save All button in Visual Studio
Right click on iOS project and select "Unload project"
Select unloaded iOS project to see *.csproj file contents
In <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhoneSimulator' "> Remove tags <CodesignKey> and <CodesignProvision>
Click Save all button
Right click on iOS project -> Reload Project

Now it should be working.

Application won't start on simulators in Xcode 12

Remove /Library/Developer (the one from root), or rename it and relaunch your Xcode.

cmd + shift + opt + k

pod update

Xcode iPhone simulator is not launching app

Just reset your simulator and quit your xcode and Simulator. Then Restart the xcode again. Clean the Code and now run the project. It should work properly. Hope it helps you.

Swift simulator won't launch in Xcode, despite successful build

I agree with @Preston: don't upgrade to Beta if the latest stable version is giving you issues. It might be good to uninstall and then reinstall your current version. Perhaps that might work. Follow this guide for help uninstalling (contains info for recent versions): http://osxdaily.com/2012/02/20/uninstall-xcode/

This may seem like an obvious question but have you renamed any of your project files recently? When you go to Product > Scheme > Edit Scheme, under Run, is the correct "Your-Project.app" selected for Executable? Make sure you do a quick Clean "shift-command-k" after changing file names or schemes.

Also, try Simulator > Reset Content and Settings. Some people report that as helping fix freezing/non-responsive problems.