tar: This does not look like a tar archive

[ghost]

I tried to download chroagh with curl but when I want to use tar afterwards it says:
tar: This does not look like a tar archive

After that I downloaded the whole repo as a zip. Unzipped it and tried to use the install command, but got the same error like above. This was the output:

Installing arch-x86_64 chroot to /usr/local/chroots/arch
Fetching repository packages list...
Fetching core...
-=#=-#     #       #                                                                                                                                                     
tar: This does not look like a tar archive
tar: Exiting with failure status due to previous errors
Fetching community...
-=#=-#     #       #                                                                                                                                                     
tar: This does not look like a tar archive
tar: Exiting with failure status due to previous errors
Fetching extra...
-=#=-#     #       #                                                                                                                                                     
tar: This does not look like a tar archive
tar: Exiting with failure status due to previous errors
Downloading and extracting packages...
Cannot find package bash...

I used this command to install it: sudo sh -e installer/main.sh -r arch -t x11,xorg,audio,touch,keyboard,extension,core,cli-extra,chrome

Not sure what I am doing wrong, or is this just all outdated?

[dbaynard]

The default mirror has changed. Try supplying a mirror (in the form -m http://archlinux.mirrors.uk2.net/$repo/os/$arch). Or try @mediocregopher's fork. Or mine (though it's not quite ready).