My Time Machine recently stopped working. When it tries to create a backup, it quickly fails with the error:
"Unable to complete backup. An error occurred while creating the backup folder."
The drive has plenty of space and I have not updating my operating system. Actually, due to software compatibility issues, I'm still running 10.9.5. Everything I've found on google says to remove the .inProgress file, but when I try to delete it (drag it to Trash) I get this error:
"The Finder can't complete the operation because some data in "file.inProgress" can't be read or written. (Error code -36)"
I've tried tmutil delete and it returned the error "tmutil: delete requires root privileges." I don't even know what that means. Can someone give me another suggestion? Manually backing up my hardrive is a huge pain and I forget to do it more often than not.