Failed to find newest available simulator runtime - Image.xcassets when building RN app on iOS

Question

I am trying to make some adjustments to an app that I haven't touched for a few months.

I am just trying to build the app using xCode and getting this error

I am running the app on my physical device

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I have tried doing

Product -> Clean build folder

and

yarn cache clean --force

But the problem persists.

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Update I also keep receiving this error

Failed to find or create execution context for description '<IBCocoaTouchPlatformToolDescription: 0x7f9a97966130> System content for IBCocoaTouchFramework-ThirteenAndLater <IBScaleFactorDeviceTypeDescription: 0x7f9a9565efe0> scaleFactor=2x'.

It went away when I

• cleaned my build folder
• removed my node_modules, Pods, Podfile.lock, and yarn.lock

But then it just came back

This is my launchscreen

Answer 1

Solution 1:

sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService

Solution 2

When upgrading, you may drag around old simulators no longer available with your current version of Xcode. You can clean these by running this command in Terminal:

xcrun simctl delete unavailable

Quit Xcode first just for good measures. From the documentation:

Delete a device or all unavailable devices.

Solution 3:

Installing/Reinstalling Simulators worked!!

Look under (XCode Preferences-> Downloads -> Components)

Solution 4 (Sam Solution)

just delete Xcode and install the newest version from developer.apple.com/download/more .

Answer 2

sudo xcrun simctl shutdown all && sudo xcrun simctl erase all

It helped to fix Jenkins