Error installing Manjaro KDE in external HDD

[Fabby]

Welcome to Manjaro!

Please read this:

[HowTo] erase an external disk (USB, SD-Card, ...) EASILY (through a GUI)

Difficulty: ★☆☆☆☆ Note: The below procedure will not erase your device securely! It will help you do this easily without much chance for you making a human error instead… The below procedure will wipe your disk so a normal user cannot see any data without forensic tools. If you want to securely erase a disk, so even the CIA, NSA, ФСБ, 国安部 cannot read it, consult your device manufacturer’s documentation. Ensure the device is not connected to your computer, so put it in your poc…

And then try installing again.

Obviously, do the above from the booted Manjaro USB stick, before you start installing!

P.S. Next time when you run into trouble, please use the English version because not everyone understands error messages. (Sei stato fortunato!)