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Support Article

Error on saving dialog on Confirm screen of Service case



Blue screen with an error message displays on saving dialog on the Confirm screen of the Service case. This occurs when Pega Customer Service 8.3 is installed on Pega 8.3.1.

Error Messages

java.lang.IndexOutOfBoundsException: Invalid reference to the zeroth(0) element in list, newAssignPage.pyAssignActions. Lists start from 1. 
at ~[prprivate-data.jar:?] 
at com.pega.platform.clipboard.query.internal.ListOperation.processLegacyPageList( ~[clipboard.jar:?] 
at com.pega.platform.clipboard.query.internal.QueryFunctionGenerator.lambda$getQueryFunction$2( ~[clipboard.jar:?] 
at com.pega.platform.clipboard.query.internal.QueryExecutor.execute( ~[clipboard.jar:?] 
at com.pega.platform.clipboard.query.internal.ScalarValueQueryExecutor.invokeLegacy( ~[clipboard.jar:?] 
at com.pega.platform.clipboard.query.internal.ScalarValueQueryExecutor.execute( ~[clipboard.jar:?] 
at com.pega.platform.clipboard.query.internal.ScalarValueQueryImpl.resolveAgainstPage( ~[clipboard.jar:?] 
at com.pega.platform.clipboard.query.internal.ScalarValueQueryImpl.resolve( ~[clipboard.jar:?] 

Steps to Reproduce

  1. Launch the Interaction portal
  2. Create an interaction
  3. Create an intent task
  4. Proceed with the intent-task flow
  5. Save the custom dialog on the Confirm screen
  6. Close the dialog window. Error occurs

Root Cause

A defect in Pegasystems’ code or rules. The newAssignPage.pyDefaultActionIndex is empty and it causes error during the CPMDisplayCoachingTip activity.


Apply HFix-59211.


Published December 23, 2019 - Updated December 2, 2021

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