Wd backup will not install

I have tried to install WD Backup but I am unable to complete this as no device is discovered for the first backup.

@Phil8 What WD Device are you wanting to backup to? What WD Device do you own that you are trying to backup?

Here is the list of applicable devices.

Applicable Products

My Book, My Book for Mac, My Book Duo, My Book, WD easystore Desktop, My Book Duo, My Passport Wireless, My Passport Ultra Metal, My Passport Ultra (WD Backup), My Passport for Mac, My Passport Wireless Pro, My Passport, My Passport for Mac, WD easystore Portable, My Passport SSD, My Passport Ultra, My Passport Wireless SSD, My Passport Ultra (USB-C), My Passport Ultra for Mac (USB-C), My Passport Go

Also see if this helps.
https://support-en.wd.com/app/answers/detail/a_id/11564