KB-1362 Slicing a list of lists causes "NullPointerException"

Symptoms

When attempting to slice a value from a list of lists, the following error occurs: 

Expression evaluation error : 

Additionally, the following error is seen in the logs:

Expression evaluation error :  (APNX-1-4198-000)
...
Caused by: java.lang.NullPointerException

Cause

This issue has been reported to the Appian product team. The reference number for this issue is AN-51686.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: May 2017

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