I have downloaded the last versions of Juno, Atom, and Julia. I follow the steps for the installation of Juno IDE. However, after I install all packages, Atom show me the error message “Julia Client requires the Ink package to run. You can install it from the settings view.”. I have seen that Ink package is installed.
Are you sure that the ink packages is enabled in Atom? You can check that from the same Settings → Packages menu where you verified that ink was installed. If it was not enabled, you’ll see a button to Enable it.
I’ve had a similar error to yours when I accidentally had ink disabled: Juno wouldn’t install it because it was already installed, but I couldn’t use it because it wasn’t enabled.