Cannot launch application on real iOS device - Original error : "null" cannot be coerced

Hi @bisu1909,

For best compatibility, it’s recommended that you use Appium Server 1.8.2-beta with Katalon 6.x and Xcode 10.x:

npm install -g appium@1.8.2-beta

Here are some other common troubleshooting tips that you can try as well:

Hope this helps,

Chris