During a recent trip I snagged a T410(see: a gift from a kind being) with Ubuntu on it. During the trip I did some minor customizing like oh-my-zsh and Sublime. Made sure Java ran-- I'm still going through Head First Java (was trying to keep up with my reading while out of town). As soon as I returned I got down to "setting up"-- Git, connecting Github so I can start pushing my work, Node, npm, nvm... and of course things don't run 100% smooth so I decided to jot some of my encounters.
Total Linux n00b, I really should have started this as I went, but here goes anyway...
It's continuous display was annoying and so not helpful-- telling me I have a problem, but not letting me see what the hell it is from the pop-up... c'mon!
I found the posts below-- I didn't want to remove the pop-up completely, but did clear reports...
https://www.binarytides.com/ubuntu-fix-system-program-problem-error/
I installed nvm and it seemed to work ok until I tried to use it from another folder. I thought I fixed it, but after a restart I was back to square one.
What was the issue?
The gist: turns out during setup there's a line suggested to put into a certain file, like bash-- the line for me had to go into my zsh file because that is the terminal that was being loaded.
Some ways down this SO post Karl's answer helped me out.
[TL;DR] add source ~/.nvm/nvm.sh to the ~/.zshrc
Sometimes you have multiple versions and while java -version shows you your current version it doesn't show anything else. In comes sudo update-alternatives --config java. It will list versions and you are able to select version as well.
references: