Ios build error: Error: Command failed: xcrun simctl list --json

Ionic Framework ionic-v3
1

Hi guys,
I need of support for this error:

> ionic-app-scripts build "--prod" "--release"

[16:35:44]  ionic-app-scripts 1.3.7 
[16:35:44]  build prod started ... 
[16:35:44]  clean started ... 
[16:35:44]  clean finished in 7 ms 
[16:35:44]  copy started ... 
[16:35:44]  ngc started ... 
[16:35:58]  ngc finished in 13.93 s 
[16:35:58]  preprocess started ... 
[16:35:58]  deeplinks started ... 
[16:36:00]  deeplinks finished in 1.63 s 
[16:36:00]  optimization started ... 
[16:36:00]  copy finished in 15.79 s 
[16:36:20]  optimization finished in 20.26 s 
[16:36:20]  preprocess finished in 21.88 s 
[16:36:20]  webpack started ... 
[16:36:44]  webpack finished in 23.61 s 
[16:36:44]  sass started ... 
[16:36:44]  uglifyjs started ... 
[16:36:45]  sass finished in 1.58 s 
[16:36:45]  cleancss started ... 
[16:36:47]  cleancss finished in 2.15 s 
[16:37:38]  uglifyjs finished in 54.76 s 
[16:37:38]  postprocess started ... 
[16:37:38]  postprocess finished in 52 ms 
[16:37:38]  lint started ... 
[16:37:38]  build prod finished in 114.30 s 
[16:37:43]  lint finished in 4.26 s 
Error: Command failed: xcrun simctl list --json
dyld: Library not loaded: /Library/Developer/PrivateFrameworks/CoreSimulator.framework/Versions/A/CoreSimulator
  Referenced from: /Applications/Xcode.app/Contents/Developer/usr/bin/simctl
  Reason: image not found

Could you please help me?

Thanks in advance

Luca

2

I’m getting this error too very recently. I’m able to build against Android platform, but got this error while build against ios platform, any help will be appreciated.

3

I had the same error.
Start XCode - it likely needs to run some updates and then rerun the ionic cordova build ios command

19 Likes
4

yeah updating Xcode or Android studio solves this issue