In this post, you’ll learn more about the Oracle ErrorRMAN-06012: channel: string not allocated with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
RMAN-06012: channel: string not allocated
Reason for the Error RMAN-06012: channel: string not allocated
A RELEASE command was found for a channel identifier that was not yet allocated.
How to fix the Error RMAN-06012: channel: string not allocated ?
You can fix this error in Oracle by following the below steps
Correct the channel identifier, or add an ALLOCATE CHANNEL command.