Cordova build iOS error: Cannot read property 'toLowerCase' of undefined with Xcode 9.4.1

[lynzz]

Ionic:

ionic (Ionic CLI) : 4.0.2 (/Users/lzz/.nvm/versions/node/v8.9.1/lib/node_modules/ionic)
Ionic Framework : ionic-angular 3.9.2
@ionic/app-scripts : 3.1.8

Cordova:

cordova (Cordova CLI) : 7.1.0
Cordova Platforms : android 6.3.0, ios 4.5.5

System:

Android SDK Tools : 25.2.3
ios-deploy : 1.9.2
ios-sim : 6.1.2
NodeJS : v8.9.1 (/Users/lzz/.nvm/versions/node/v8.9.1/bin/node)
npm : 5.5.1
OS : macOS Mojave 10.14.1 Beta
Xcode : Xcode 9.4 Build version 9F1027a

Environment:

ANDROID_HOME : /Users/lzz/Library/Android/sdk

Reinstall xcode 10, and such a mistake

Why?

[kashban]

I already made a Pull request to fix this:

#428

[lynzz]

@kashban Thanks, why would I use xcode 9.4 reported that such a mistake，for macOS 10.14.1 Beta ?

[kashban]

There was an update for the xcode build tools not long ago which was also issued for XCode 10 (not beta), breaking the same stuff. Perhaps it's not bound to Xcode 10.1 beta.

[lynzz]

@kashban I merged your PR code, the same error occurs

[kashban]

@lynzz Then your error stems from another source. I am on vacation right now and will be back at Oct 22th.

Please post the complete stack trace of this error into your ticket.

[csabbey]

I'm getting the below stack trace. My list-emulator-build-targets line 54 is:
device.availability.toLowerCase().indexOf('unavailable') < 0

It looks like the device availability property got renamed to isAvailable; here's one of the devices:

{ state: 'Shutdown',
  isAvailable: 'YES',
  name: 'iPad Pro (12.9-inch)',
  udid: '5A707375-7596-4375-9A7A-75690B681B46',
  availabilityError: '' }

... and here's the promised stack trace:

TypeError: Cannot read property 'toLowerCase' of undefined
    at /Users/me/code/ms-client-echidna/platforms/ios/cordova/lib/list-emulator-build-targets:54:45
    at Array.forEach (<anonymous>)
    at /Users/me/code/ms-client-echidna/platforms/ios/cordova/lib/list-emulator-build-targets:52:44
    at Array.reduce (<anonymous>)
    at /Users/me/code/ms-client-echidna/platforms/ios/cordova/lib/list-emulator-build-targets:50:57
    at Array.reduce (<anonymous>)
    at /Users/me/code/ms-client-echidna/platforms/ios/cordova/lib/list-emulator-build-targets:45:28
    at _fulfilled (/Users/me/code/ms-client-echidna/platforms/ios/cordova/node_modules/q/q.js:854:54)
    at /Users/me/code/ms-client-echidna/platforms/ios/cordova/node_modules/q/q.js:883:30
    at Promise.promise.promiseDispatch (/Users/me/code/ms-client-echidna/platforms/ios/cordova/node_modules/q/q.js:816:13)

[kashban]

That's exactly the issue my PR fixes.

[csabbey]

@kashban Yes, it looks like the same issue.

[waflessnet]

@csabbey , yes, i change the "if" line 54 of platforms/ios/cordova/lib/list-emulator-build-targets for:

if (device.name === deviceType.name.replace(/\-inch/g, ' inch') &&  device.isAvailable == 'YES') 

then, the function "availableDevices" is:

 var availableDevices = Object.keys(devices).reduce(function (availAcc, deviceCategory) {
                var availableDevicesInCategory = devices[deviceCategory];
                availableDevicesInCategory.forEach(function (device) {
                        //console.log(device);
                    if (device.name === deviceType.name.replace(/\-inch/g, ' inch') && device.isAvailable == 'YES') {
                            availAcc.push(device);
                        }
                });
                return availAcc;
            }, []);

It works!

PD: if, example your run "ionic cordova build ios" and device "iphone" is conected to mac. the change apply (line 54) is delete. then you must apply it again.

[kashban]

@waflessnet Once my PR is merged and released with the next major version the change will be permanent. It even considers both json formats, so it will be backward compatible.

[felimoles]

in xcode > 10 dont work :(

[kennybky]

I had this same problem, but I found a solution. I don't know if it would work for others but I should probably share it in case.
I uninstalled then reinstalled ios platform.
I ran npm update.

Note: I am using cordova without ionic

Cordova: 8.1.2 (cordova-lib@8.1.1)
ios-deploy: 1.9.2
xcode: 9.4.1