I'm trying to make Atom, my IDE, work as a full-featured PHP IDE.
The best way to do this seems to be the 'php-integrator' package. (https://php-integrator.github.io/)
Researching this error it seems that Composer may be the problem. I'll attach a screenshot of an Ubuntu terminal command to show you the error.
I can't find the missing packages and really just want this to work painlessly. What can I do?