The requested media is not listed in the media index and could not be mounted

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When you attempt to catalogue a tape you receive the below error

Error:
Catalog jobs fail stating “The requested media is not listed in the media index and could not be mounted. To add the media’s catalog information to the disk-based catalogs, run an inventory operation on the media and resubmit the Catalog operation.”

1) Open Symantec Backup Exec
2) Click Tools and Options
3) On the left hand pane select Catalog
4) On the right hand pane remove the check mark “Use storage media-based catalogs”
5) Click OK and try again.
6) You may want to enable “Use storage media-based catalogs” when done with your catalog