I have a Virtual Machine running Ubuntu Linux that I use for testing purposes, but it recently started popping up this message saying “Pending Update of Snap-Store, Close the App to Avoid Disruption.”
No matter what I thought I closed correctly or how many times I rebooted the VM, the error message still came back.
The solution was simple. All you really need to do is a snap refresh, but you’ll notice in my screenshot above, even though I ran the command and it found updates: it did not resolve my issue, because the system was still waiting me to “close the app to avoid disruption.”
So a quick sudo killall snap-store, then a sudo snap refresh and boom the snap-store was updated and the error message was resolved!