Support Article

Component stack mismatch error post Pega 7.4 update

SA-70751

Summary



Post updateing Pega 7.2.1 to Pega 7.4, 'Component  stack mismatch' error occurs on a section at runtime.


Error Messages



java.lang.RuntimeException: Component stack mismatch {"pyProcessChildren":"false","methodnm":"simpleLayout_1","pyExpressionId":"4c9e7cbfd825fa5f3b1804c307f3760b67a4fcd4_6","section":{"class":"content set-width-auto layout-content-inline_grid_triple content-inline_grid_triple ","liveUI":"","sectionbody":[{"pageListProp":".SelectedSubSurveys","dpname":"","cells":[{}]}]},"uniqueid":"1539718752251","pyName":"RepeatingDynamicLayout","pyRepeatingId":"1539718752254000","pyTemplates":[{"pyCell":{"liveUI":"data-ui-meta=\"{'type':'Cell','subType':'SUB_SECTION','clipboardPath':'SelectedSurveys','className':'AAA-BBB-Work-Solicitation','pgRef':'.pySections(2).pySectionBody(1).pyTable.pyRows(1).pyCells(1)'}\"","pyType":"sub_section","partialClass":"remove-top-spacing","spanClass":"iconRequired standard_iconRequired","isFlex":"false","pyBaseRef":"NAME='BASE_REF' BASE_REF=''"},"pyName":"DynamicLayoutCell","pyTemplates":[{"pxReferencedId":"4c9e7cbfd825fa5f3b1804c307f3760b67a4fcd4_5","pyName":"pxSection"}]}]}!!!!===={"liveUI":" data-ui-meta=\"{'type':'Container'}\" ","isClientWhen":false,"pyName":"pxHarnessContainer","pyTemplates":[{"pxReferencedId":"6ba883f4608142f4648421788284e5ca62e2737f_3","pyName":"pxSection"}]}


Steps to Reproduce



Create a nested repeat dynamic layout (RDL) with the following configuration. The section in the Work- class must have, 
  • an RDL with Data- property
  • an RDL that includes a section from Data- class
  • another RDL that refers to the Work- page group
  • a section from the Work- class
     

Root Cause



A defect in Pegasystems’ code or rules.


Resolution



Apply HFix-48937.


 

Published December 31, 2018 — Updated January 12, 2019



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