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Support Article

Calling one activity from another is failing



Your activity stops with an exception error saying that an activity it is calling cannot be found in a particular class, and it is unclear why the system is looking for the activity in that class.

Error Messages Failed to find instance MYCO-FW-HMFW-Data-Questions.DisplayValidationerrorMessage for non personal RSLH db1451e76869f53e943622698329dfc2 Top App Hash HM!en_US_!HM:Managers!01.01.01$4341f012d6c9eff61d230e9e0f245b02 of type Rule-HTML-Section

Steps to Reproduce

Run the activity such that it performs the call.

Root Cause

Even though there was no visible step page on the line containing the call, a step page existed because the page was in the context of a multi-line activity loop, and therefore the step page was established in the top line of the loop.  The class containing the activity being called is not in the inheritance list of that step page.


The applies-to class of the activity being called was not in the inheritance list of the class of the step page, and this was resolved by specifying the applies-to class on the call line.

Published July 7, 2015 - Updated October 8, 2020

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