missing packet sources for openplotter

[m9tz]

Hi everyone,

I installed the latest settings-deb from:

Code:

https://github.com/openplotter/openplotter-settings/releases/download/v2.9.1-stable/openplotter-settings_2.9.1-stable_all.deb

on Debian testing, I made sudo settings to NOPASSWD and it starts well.

THEN: I got the error "no packet sources found" (in German..).

Do I have to write the ubuntu sources writen in the GUI to my /etc/apt/soures.list ?? and where are the GPG-keys. And what distro-version of ubuntu should use?

I tryed:

Code:

deb https://ppa.launchpad.net/openplotter/openplotter/ubuntu devel main restricted

and get the "apt update error"

----
The certificate is NOT trusted. The name in the certificate does not match the expected.  Could not handshake: Error in the certificate verification. [IP: 2001:67c:1560:8008::19 443]
----


or is there any other solution to test it on debian? I'am not new to Linux but never used ubuntu deeply.

Thanks
Michael