Arch Linux User Repository

Sounds like you need some Manjaro or pamac-manager help. I know it sounds like Arch snobbery, but you're having issues w/ some super basic stuff. Try digging through some wikis and/or support forums. Good luck.

@user98170, Do you have curl installed? I think by default http is handled by curl. Alternatively, your http download handler should be defined by the DLAGENT variable in your /etc/makepkg.conf file. Good luck.

What happens if you do it the manual way, download this via git clone and then go into the folder and makepkg?

If you curl or wget that file into the right place, does it work then?

New to Manjaro (coming from Ubuntu). Trying to figure out how to reinstall Pacman. Line 72 reads if ! command -- "${cmdline[@]}" >&2; then

Reinstalled Pacman. Able to successfully build other AUR packages. Still same error when trying to build Plex.

I'm Using pamac-manager

Haven't touched /etc/makepkg.conf

You may have also messed up /etc/makepkg.conf, where the download agents are defined.

Your problem looks like it is with makepkg, which would only be for building from PKGBUILD, like in AUR packages. So can you successfully build other AUR packages? I agree w/ @techwiz, /usr/share/makepkg/source/file.sh is owned by pacman, so I'd just re-install it. You could also have a look at that file on line 72. It reads if ! command -- "${cmdline[@]}" >&2; then in mine, what does yours read?

Makepkg is provided by Pacman, try a different AUR package and I suspect you will have the same problem. It looks like one of your supporting scripts is broken or missing. HTTPS isn't really all that fancy a protocol and should 100% be a known and supported protocol.