SCR error when running "Update-StorageGroupCopy" command

I was able to Enable SCR, but when I go to seed the database using the "Update-StorageGroupCopy" I get the following message....Any ideas?

"There is no StandbyReplicationNode String found for node "Our Target Server Name"
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How did you enable SCR?
Did you use the -standbymachine switch?
Enable-StorageGroupCopy -Identity <NameofStorageGroup> -StandbyMachine <NameofSCRTargetMachine> -ReplayLagTime 0.1:0:0
Is the Microsoft Exchange Replication service running on both the source and target servers?
Run this command in Exchange Management Shell test-replicationhealth from either the source and target machines and post the results

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