Error while making changes in the Lightning App Builder
Last updated 2022-08-08 ·Reference W-10706006 ·Reported By 106 users
An error: "Error in $A.getCallback() [Cannot set properties of undefined (setting 'alternateExpressionValue')]" is thrown while making changes like adding a tab in the Lightning App Builder.
>> Create a lightning page and try to add a new tab to the Tabs component in the Lightning App Builder.
The changes made are still reflected when the user clicks the 'OK' button on the error dialog. Users can click the 'OK' button and proceed with saving the changes made.
Reported By (106)
Is it Fixed?
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