The repository 'https://dl.bintray.com/openhab/apt-repo2 stable Release' is not signed. (Raspberry pi 3)

[marcel_erkel]

There are problems with the repository on bintray. Burkart posted the solution in the other topic to use the repository on jfrog:

@Burkart_Poneleit

echo ‘deb https://openhab.jfrog.io/openhab/openhab-linuxpkg stable main’ | sudo tee /etc/apt/sources.list.d/openhab2.list
sudo apt update