react-native run-ios can not find any simulator

Question

I have been facing an issue where \'react-native run-ios\' can not start, regardless of the simulator I add to the --simulator argument. XCode has the correct location for t

Answer 1

Here is additional temporary fix too. I am using Catalina.

I this file:

/node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js

Change line 42 to:

if (!version.includes('iOS') && !version.includes('tvOS')) {

Change line 52-53 from:

simulator.availability !== '(available)' &&
simulator.isAvailable !== 'YES'

to:

simulator.isAvailable !== true

because the returned json list from command xcrun simctl list --json devices, the property isAvailable is boolean and didn't have property 'availability'.