Name of the deployment preview error
You cannot change the fullName property of an element.
Sample error message
You cannot change the fullName property of an element. The fullName property of 'salesforce.apexclass.instance.UnitOfWork' was changed from 'UnitOfWork' to 'UnitOfWorking'
When will I see this deployment preview error?
It is rare that you will encounter this error, but it can happen if you are doing a "find and replace" operation in "out-of-app" edit.
Changing the element name of a Salto element is not supported because this is what determines the element Id, which is used throughout many Salto operations.
This can happen if you do a "find and replace" operation and, by mistake, change the name of an element.
How does this affect my deployment?
The name change will be skipped, and the deletion will not be attempted.
How can I fix this error?
Revert the change, or don't select it for deployment.
You can learn more about deployment preview errors here.