Support Article
The page or property is read-only and cannot be modified
SA-20912
Summary
User is seeing numerous exceptions in the logs as below:
com.pega.pegarules.pub.clipboard.ReadOnlyException
The page or property D_pyUserWorkList.pxResults is read-only, and cannot be modified. Calling method: com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.addWarningMessage(String) Details: (none)
at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.addWarningMessage(ClipboardPropertyImpl.java:2929)
at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.addMessage(ClipboardPropertyImpl.java:2891)
at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.adoptDictionaryDefinition(ClipboardPropertyImpl.java:3308)
at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.lookupDictionaryDefinition(ClipboardPropertyImpl.java:3379)
at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.lookupDictionaryDefinition(ClipboardPropertyImpl.java:3315)
at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.lookupDictionaryDefinition(ClipboardPropertyImpl.java:3212)
User would like to know why these exceptions appear and how to resolve it.
Error Messages
com.pega.pegarules.pub.clipboard.ReadOnlyException
The page or property D_pyUserWorkList.pxResults is read-only, and cannot be modified. Calling method: com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.addWarningMessage(String) Details: (none)
at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.addWarningMessage(ClipboardPropertyImpl.java:2929)
at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.addMessage(ClipboardPropertyImpl.java:2891)
at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.adoptDictionaryDefinition(ClipboardPropertyImpl.java:3308)
at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.lookupDictionaryDefinition(ClipboardPropertyImpl.java:3379)
at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.lookupDictionaryDefinition(ClipboardPropertyImpl.java:3315)
at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.lookupDictionaryDefinition(ClipboardPropertyImpl.java:3212)
Steps to Reproduce
Login as a rerular user and use the app. These exceptions are originating from the packaging module (hybrid client). There is no functional impact.
Root Cause
D_pyUserWorklist is a datapage and this is read-only. User will have to just switch this to edit mode to fix this.
Resolution
The error message shows that the D_pyUserWorkList data page is currently set to read-only. You will need to modify this D_pyUserWorkList data page to Edit mode (alter the read/write permissions of the data page) to resolve this issue.
Published March 23, 2016 - Updated October 8, 2020
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