no permissions (user in plugdev group; are your udev rules wrong?)

While trying to use ADB on a Linux Computer, I received the following error from “adb devices”

no permissions (user in plugdev group; are your udev rules wrong?);

Not exactly sure what causes the above error, but the information in the following Stack Exchange link was helpful.

https://stackoverflow.com/questions/53887322/adb-devices-no-permissions-user-in-plugdev-group-are-your-udev-rules-wrong

I was able to get around the issue by putting the USB option to “File Transfer Mode” from the notifications menu