Error: You can't change a Lightning Page's associated object

Question

I am attempting to execute a deployment to a Sandbox using ant + force.com metadata tool v.37 and my deployment is failing with the error:

*********** DEPLOYMENT FAILED ***********

All Component Failures: 1. flexipages/Practitioner.flexipage -- Error: You can't change a Lightning Page's associated object.

*********** DEPLOYMENT FAILED ***********

My flexipage definition is not modified from a prior deployment which was successful and still uses the same sObjectType it always has:

<?xml version="1.0" encoding="UTF-8"?>
<FlexiPage xmlns="http://soap.sforce.com/2006/04/metadata">
    <flexiPageRegions>
        ... snip ...
    </flexiPageRegions>
    <masterLabel>Practitioner</masterLabel>
    <pageTemplate>flexipage:recordHomeTemplateDesktop</pageTemplate>
    <sobjectType>HealthCloudGA__EhrPractitioner__c</sobjectType>
    <type>RecordPage</type>
</FlexiPage>

Does this error imply that the underlying metadata of the object that the FlexiPage refers to cannot be changed in any way? (Custom fields, etc.)

Answer 1

The error message was accurate. You cannot change the underlying sobjectType.

In the target org, at some point in the past this FlexiPage had been bound to the Account object and the deployment was attempting to change the sobjectType to HealthCloudGA__EhrPractitioner__c.

    <masterLabel>Practitioner</masterLabel>
    <pageTemplate>flexipage:recordHomeTemplateDesktop</pageTemplate>
    <sobjectType>Account</sobjectType>
    <type>RecordPage</type>
</FlexiPage>

Deleting the offending FlexiPage in the target org and redeploying was successful.