react-native run-ios can not find any simulator

Environment

React Native Environment Info:
System:
OS: macOS 10.14.2
CPU: (12) x64 Intel(R) Core(TM) i9-8950HK CPU @ 2.90GHz
Memory: 6.76 GB / 32.00 GB
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 10.15.0 - /usr/local/bin/node
Yarn: 1.13.0 - /usr/local/bin/yarn
npm: 6.4.1 - /usr/local/bin/npm
SDKs:
iOS SDK:
Platforms: iOS 12.1, macOS 10.14, tvOS 12.1, watchOS 5.1
IDEs:
Android Studio: 3.1 AI-173.4819257
Xcode: 10.1/10B61 - /usr/bin/xcodebuild
npmPackages:
react: 16.6.3 => 16.6.3
react-native: 0.57.8 => 0.57.8
npmGlobalPackages:
create-react-native-app: 1.0.0
react-native-cli: 2.0.1
react-native-git-upgrade: 0.2.7

Description

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 the 'command line tools'

I am always getting the error:
Could not find iPhone X simulator

Error: Could not find iPhone X simulator
    at resolve (/Users/eric/.../swim/node_modules/react-native/local-cli/runIOS/runIOS.js:149:13)
    at new Promise (<anonymous>)
    at runOnSimulator (/Users/eric/.../swim/node_modules/react-native/local-cli/runIOS/runIOS.js:134:10)
    at Object.runIOS [as func] (/Users/eric/.../swim/node_modules/react-native/local-cli/runIOS/runIOS.js:106:12)
    at Promise.resolve.then (/Users/eric/.../swim/node_modules/react-native/local-cli/cliEntry.js:117:22)

Reproducible Demo

Installed XCode from scratch.
Brand new 'react-native new app'

'react-native run-ios' always complain about not finding the simulator, regardless of the --simulator option.

My temporary fix is to change:
/node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js

line 42, to:
if (!version.startsWith('**com.apple.CoreSimulator.SimRuntime.**iOS') && !version.startsWith('tvOS')) {

just tried a brand new project with:
react-native: 0.58.3 => 0.58.3

and same issue

Can you check which iOS simulator are installed on your machine?
You can always pass which simulator you want to target via the react-native run-ios —device=“XXXXXX’

I have the same issue here as well.
When I changed to
if (!version.includes('iOS') && !version.includes('tvOS')) {
continue;
}

all is well, since the prefix "com.apple.CoreSimulator.SimRuntime." is included in the device-list, the pure check for startsWith fails for all simulators.

I created pull request #23293 for this issue

@osunnarvik

Hey @osunnarvik thanks for creating the PR! Could you explain bit more (maybe in the PR) why is this happening now? I mean, when did the prefix changed? In latest Xcode? 🤔

I have updated the description of the PR now to say a bit about when it startet happening and added some version information of XCode and xcrun

@kelset

@kelset yes, I believe the format of the list of devices has changed with the latest XCode.

Awesome - thanks folks :)

We have already merged the PR to 0.58 (since 0.59 etc will have the CLI separated) and next patch release (0.58.4) will have the fix 💪

@kelset

@kelset I noticed the comment in react-native-community/cli#138 regarding when you specify the simulatorString (comment from @canterberry ). I only checked with empty simulatorString and not with one set. Let me know if you would like me to take a look at the case where the simulatorString is set.

When you open .xcodeproj file in ios folder it will start Xcode IDE and there you will be able to choose particular simulator.
See screenshots below.

You can choose device from this list.

But if you do not see iPhone X you can easily add it to your list of devices.

If you have any questions let me know.
Thanks.

If doesn't work after add iPhone X simulator in XCode

Delete node_modules
Delete yarn.lock or package-lock.json
Run yarn or npm install

If doesn't work after add iPhone X simulator in XCode

Delete node_modules

Delete yarn.lock or package-lock.json

Run yarn or npm install

Delete lock files may be problematic under certain circumstances. Do it carefully

If you just want to run any specific device. It might be missing in Simulators list. To add a device do the following steps:

Open Xcode
Press Command+Shift+2 it will open Devices & Simulators option.
Go to Simulators tab and press + icon on the left bottom and add iPhone X or any missing device you want.

Please kindly try this solution. It might work for you.

#24450 (comment)

I found this the simplest,

react-native run-ios --simulator "iPhone 11 Pro Max"

This doesn't seem to be a problem anymore for me. Maybe some update in the meantime fixed it?

@danielcampo

@danielcampo 's suggestion of upgrading the CLI fixed it for me.

I had to add this to my package.json:
"@react-native-community/cli": "@^1.12.0", as, for some reason, the lock wouldn't upgrade paste 1.11.2 without it.

Now it finds simulators without problem.

Updated to xcode 11. couldn't find device.
problem is with interpreting the output of xcrun simctl list --json devices that's used by the script to find out installed devices.
Went into the code of findMatchingSimulator. in the condition stating
            if (
                simulator.availability !== '(available)' &&
                simulator.isAvailable !== 'YES'
            ) {
                continue
            }
added new form of isAvailable (Which is now a plain boolean):
            if (
                simulator.availability !== '(available)' &&
                simulator.isAvailable !== 'YES' &&
                simulator.isAvailable !== true
            ) {
                continue
            }
this sorted things out.

This worked to me! Thanks guy!

Attempt to fix issue with simulator not being found

If someone is still looking for the findMatchingSimulator.js file to manually edit it, you can currently find it at this path:
node_modules/@react-native-community/cli/build/commands/runIOS/findMatchingSimulator.js

I hope this helps someone down the line!

Also remember to pass IOS version within parenthesis:

--simulator "iPhone 11 Pro Max (13.2)"

@kelvinlemus

@kelvinlemus I have

react-native-cli: 2.0.1
react-native: 0.61.5

And i want to change default simulator "iPhone X"
I'm trying to run react-native run-ios --simulator='iPhone XR' Or Others
but in every time just iPhone X launched

Navigation Menu

Repository navigation

react-native run-ios can not find any simulator #23282

Environment

Description

Reproducible Demo

88 remaining items

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

react-native run-ios can not find any simulator #23282

Description

Environment

Description

Reproducible Demo

Activity

react-native-bot commented on Feb 3, 2019

eric-PearSports commented on Feb 4, 2019

kelset commented on Feb 5, 2019

osunnarvik commented on Feb 5, 2019

osunnarvik commented on Feb 5, 2019

kelset commented on Feb 5, 2019

osunnarvik commented on Feb 5, 2019

eric-PearSports commented on Feb 5, 2019

kelset commented on Feb 5, 2019

osunnarvik commented on Feb 5, 2019

88 remaining items

pincodebibi commented on Oct 2, 2019

marcosalberto commented on Oct 3, 2019

lucianomlima commented on Oct 4, 2019

avtarnanrey commented on Oct 13, 2019

nanadjei commented on Oct 19, 2019

robincsamuel commented on Oct 26, 2019

jamonholmgren commented on Nov 5, 2019

njt1982 commented on Nov 22, 2019

fvmsantos commented on Nov 28, 2019

McMainsLiam commented on Jan 9, 2020

kelvinlemus commented on Jan 26, 2020

anastely commented on Feb 10, 2020

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions