How to use method "Mobile.findImageElement"

Hi Support,

Could you tell me how we can use the method below?:
Mobile.findImageElement(String pathImage)

We are using this method with import library by:
import com.kms.katalon.core.mobile.keyword.MobileBuiltInKeywords as Mobile

But we receive the failure with an exception:
com.kms.katalon.core.mobile.keyword.MobileBuiltInKeywords$verifyImagePresent.call(Unknown Source)

Is there any .jar file needed to downloaded before import this library?

Many thanks.

@NTTDATAItalia_POnL
Please copy the stack-trace and show it here?

Thank you for your feedback, and sorry for late reply.
At the moment, we moved to use another way to test instead of comparing images.
I will open another topic in the future in case the error recur.

Can you show me an example of Katalon script for comparing/finding an image on a mobile’s screen?

Thanks in advance!