In order for us, or anyone for that matter, to be able to provide assistance, more information is necessary. To that end, please see:
Hope you manage!
To provide terminal output, copy the text you wish to share, and paste it here, surrounded by three (3) backticks, a.k.a grave accents. Like this:
Or three (3) tilde signs, like this:
This will just cause it to be rendered like this:
cursus nisl nisi
hendrerit ac quis
tortor sit leo commodo.
Instead of like this:
Portaest sed elementum cursus nisl nisi hendrerit ac quis sit adipiscing tortor sit leo commodo.
Alternatively, paste the text you wish to format as terminal output, select all pasted text, and click the </> button on the taskbar. This will indent the whole pasted section with one TAB, causing it to render the same way as described above.
Thereby improving legibility and making it much easier for those trying to be of assistance.
If your language isn’t English, please prepend any and all terminal commands with
LC_ALL=C. For example:
This will just cause the terminal output to be in English, making it easier to understand and debug.
Please edit your post accordingly.
Now that that’s over with, how did you try to install unity? Because I find it only in the AUR, and the AUR isn’t really supported…