Disk Utility Error: What is Live file system repair is not supported?

I just thought I would share my solution. I was having the same issues, but I turned off file sharing and it repaired the drive with no issues. Once it was done I turned file sharing back on.

ironteeth... this resolved the issue of Disk Utility unable to repair the disk due to "Live file system repair is not supported."

Thanks for sharing.

You'll get this message if you try to repair a file system that's mounted.

You need to eject a disk before repairing it.

+1 for turning off Sharing.

+1 for turning off Sharing and Sophos Anti-Virus.

For me the solution was to simply force eject the drive, and then unplug it from USB, and then plug it back in. My drive was a WD.

Thank you!!! That was so quick and easy and way less complicated that all the other "fixes"

This helped me. Simply ejecting the disk, then saying "force" when prompted. I didn't have to reboot. I was able to see the file system and do the repair from within Disk Utility