Java JDK, Package openjdk-8-jre-headless is not available


Package openjdk-8-jre-headless is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package ‘openjdk-8-jre-headless’ has no installation candidate

I also tried installed the complete package. It is also not available.
Can you recommend steps to resolve the JRE depency


What is your OS and vesrion?


Hi Damencho,

It is Ubuntu 18.04 TLS


It is available:
Do you have ‘universe’ enabled?


Thanks Damian, I managed to complete the installation.

I have configured Ubuntu with a public IP and I set my domain as

I cant seem to get service to work. How to do start a session?

Looking forward to hear from you.




I don’t think your DNS is set up correctly, doesn’t resolve.

To test your deployment, you need to open, enter a room, copy the url, send it to a friend or if you are just testing, open a second tab in the browser and open that url, you will have a conference between two tabs most probably in p2p mode. To test and jvb open a third tab and you will have a conference of 3 using jvb.

Other than the DNS your deployment seems to be working fine.


Hi Damian

How do change the domain name I chose during installation to my public IP: ?