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Support Article

Unable to passivate 'pyTempDisplayParamPage' in logs



Unable to passivate page 'pyTempDisplayParamPage' in the PegaRULES file.

Error Messages

ERROR - One or more properties could not be serialized during passivation and have therefore been lost. They will not be available on activation. Please ensure that all property data is Serializable 
com.pega.pegarules.session.external.mgmt.PageCannotBeSerializedForPassivationException: Unable to passivate page 'pyTempDisplayParamPage' on thread 'TABTHREAD2' in requestor 'H6F3784C0AFA50C10F39AF29F6747CE61'. The following items were not serializable: [Property not serializable: "pyTempDisplayParamPage.CDAISNIMDataRequestSubCategory" Class: ""]. 
at com.pega.pegarules.session.internal.mgmt.base.NodeRequestorMgt.getPageAsBytes( 
at com.pega.pegarules.session.internal.mgmt.base.NodeRequestorMgt.getPageAsBytes( 

Steps to Reproduce


Root Cause

A defect in Pegasystems’ code or rules.


Apply HFix-44807.


Published July 23, 2018 - Updated October 8, 2020

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