Hello, I do not know if this is valid as a question here, but I will do it anyway in case someone has passed.
I downloaded the ambari repositories according to the corresponding links (the wget and the key), but at the time of doing sudo apt-get update, I have the following warning:
I updated the apt, but still it continues with the problems.
I have ubuntu 16.04.5. I had installed ambari before and had not had these problems.
If someone happened to him and he managed to solve it, I would appreciate if you could guide me.