ios-sim: TypeError: Cannot read property 'replace' of undefined (lib.js:282)

The command line arguments i used for ios-sim:

./platforms/ios/cordova/lib/list-emulator-images

Expected behavior

Get a list of simulators.

Actual behavior.

TypeError: Cannot read property ‘replace’ of undefined in ios-sim/src/lib.js:282

Steps to reproduce the problem

Run “./platforms/ios/cordova/lib/list-emulator-images” in your cordova project.

System Specs

Please run the commands below in your Terminal.app and include it in the issue. Check when done and include results below.

1. system_profiler SPSoftwareDataType

System Software Overview:

  System Version: macOS 10.12.5 (16F73)
  Kernel Version: Darwin 16.6.0
  Boot Volume: macOS
  Boot Mode: Normal
  Secure Virtual Memory: Enabled
  System Integrity Protection: Enabled

2. ios-sim --version

5.0.12

3. xcodebuild -version

Xcode 8.3.3 Build version 8E3004b

4. xcode-select --print-path

/Applications/Xcode.app/Contents/Developer

5. node --version

v7.10.0

My solution

The solution for myself, because i don’t need the “iPad Pro (10.5-inch)” simulator if it even works (who knows):

The problem is that the name_id_map[deviceName] returns undefined for “iPad Pro (12.9-inch)” and “iPad Pro (10.5-inch)”.

I fixed this bug by adding an if statements which checks if the device is defined in “platforms/ios/cordova/node_modules/ios-sim/src/lib.js:282”.

I replaced this:

    list = [];
            var remove = function(runtime) {
                // remove "iOS" prefix in runtime, remove prefix "com.apple.CoreSimulator.SimDeviceType." in id
                list.push(util.format('%s, %s', name_id_map[ deviceName ].replace(/^com.apple.CoreSimulator.SimDeviceType./, ''), runtime.replace(/^iOS /, '')));
            };

with this:

    list = [];
            var remove = function(runtime) {
                // remove "iOS" prefix in runtime, remove prefix "com.apple.CoreSimulator.SimDeviceType." in id
                if (name_id_map[deviceName] && runtime) {
                    list.push(util.format('%s, %s', name_id_map[deviceName].replace(/^com.apple.CoreSimulator.SimDeviceType./, ''), runtime.replace(/^iOS /, '')));
                }
            };

Link to the issue on stackoverflow: https://stackoverflow.com/a/44451292/7199922

About this issue

Original URL
State: closed
Created 7 years ago
Reactions: 13
Comments: 28

Most upvoted comments

@JedatKinports in your project folder root, do cd platforms/ios/cordova && npm install ios-sim

+44

shazron on Jun 9, 2017

cd platforms/ios/cordova/node_modules/ sudo npm install ios-sim@latest

+29

anuragsoftware on Jun 10, 2017

It worked for me:

cd platforms/ios/cordova/ && npm install ios-sim&latest

+24

renatoalencar on Jun 14, 2017

In the meantime, I cherry-picked the ios-sim fix only and applied it to cordova-ios@4.4.0 To use: cordova platform add https://github.com/apache/cordova-ios.git#4.4.0-ios-sim

This is not an official release of Apache Cordova.

shazron on Jun 9, 2017

Hm, maybe ios-sim is installed locally additionally? Then maybe try removing it.

(I’m trying to help people debug similar problems with Ionic, which uses Cordova under the hood: https://forum.ionicframework.com/t/error-cannot-read-property-replace-of-undefined-for-ios-sim/93663)

janpio on Jun 9, 2017

We added a simple hook for our build process:

config.xml <hook src="hooks/update-ios-sim.js" type="before_deploy" />

hooks/update-ios-sim.js

#!/usr/bin/env node
const fs = require('fs');
const execSync = require('child_process').execSync;

if (fs.existsSync('platforms/ios')) {
  execSync('cd platforms/ios/cordova && npm install ios-sim@latest');
}

beesden on Aug 15, 2017

I’ll try to get a cordova-ios platform release patch out soonest.

shazron on Jun 9, 2017

If anyone is wondering where the “local” ios-sim comes from and couldn’t find the package.json locally: https://github.com/apache/cordova-ios/blob/master/package.json#L49

janpio on Jun 9, 2017

TypeError: Cannot read property ‘replace’ of undefined was the error, now I do reinstall android studio and everything works fine. thanks

kouskefil on Aug 6, 2017

This solved my problem as well!!! Thanks so much @JedatKinports !!!

Please beware not to edit the ios-sim source files of the wrong node_modules folder!!! The correct folder to edit the ios-sim source files is the one located at /cordova/platforms/ios/cordova/node_modules/ios-sim/src/lib.js.

(I had this problem through the Quasar-framework, please check to make sure you didn’t edit the wrong folder like I did.)

mesqueeb on Jun 28, 2017

new to using the simulator … trying it for the first time tonight. The solution offered by anuragsoftware worked for me.

howardowens on Jun 13, 2017

@JedatKinports this worked for me thanks!

theHellyar on Jun 9, 2017

After npm i -g ios-sim i removed the ios-sim directory inside myApp/platforms/ios/cordova/node_modules and now it’s working. Now it uses the global installed one i guess. Thanks! 😃

Anyway, i couldn’t figure out, how to update the ios-sim local (inside my cordova project) package inside node_modules directory. Any idea how that could be done?

JedatKinports on Jun 9, 2017

@piotrowski no it didn’t. The problem still exists. Even after the update to 5.1.0 with npm i -g ios-sim. Weird. Looks like the ios-sim version in the cordova project didn’t get updated. In the package.json it still says ios-sim@5.0.12, but if i execute ios-sim --version globally then i get the version: 5.1.0, any idea on how to update the ios-sim for my cordova project?

JedatKinports on Jun 9, 2017