Workarounds for iOS testing with Xcode 10

I am using Xcode 10 but just got to know that the latest release of Katalon does not support Xcode 10 . I have been facing this error (image attached) and am looking for a workaround. Any help would be deeply appreciated. Thanks.

Screenshot 2018-10-09 at 15.19.40.png

You’ll have to install an older version (9.4.1 is what I have) alongside Xcode 10. You can do this by going to and downloading the older one.

You’ll be asked to “Keep Both” when you install - do that. I named mine “”. Then you’ll have to set the default version to the older version:

sudo xcode-select -s /Applications/

Enter your login/system password when prompted.

Now you can use Xcode 10 to develop, but still run Katalon Studio.

Hope this helps,


Thanks for your response. I did see this workaround in one of the previous posts. Just wondering is there any other workaround for this issue. I do not want to have both versions of Xcode installed on my system as it messes sometimes with the current project and builds fail at times.

Hi Chandan,

Unfortunately, that is the only way I know to get Xcode 10 to work with Katalon right now. If it’s any comfort, I am running multiple versions of Xcode and using xcode-select works for me to make sure I have the right version active.

- Chris

Hi @Chandan_Ganguly,

Following up on this. Thanks to @Frank_Keefer for pointing out that you can use Appium 1.8.2-beta to work with Xcode10 and iOS12 devices:

npm install -g appium@1.8.2-beta

– Chris

1 Like