fix for: Error - File type unknown!

[ginobean]

Re: emulationstation not load after updating from source
Font::FontFace::FontFace(ResourceData&&, int): Assertion `!err' failed.

I just ran into this issue, after doing a fresh build of emulationstation. Perusing the source code, I noted that emulationstation looks for a resources directory under ~/.emulationstation/

cd to your EmulationStation build directory (the directory from which you had run 'cmake .' )
cp -r resources ~/.emulationstation/

At this point, you should be able to run 'emulationstation'.

Best :).

[Lolonois]

@ginobean Thanks, this can happen if you just compile ES (cmake / make) without any previous ES binary installation (or removed the previous binary installation).

FWIW, it should be no issue if you run sudo RetroPie-Setup/retropie_packages.sh emulationstation-dev unless you have a very dated (if not end-of-life OS) like these version (or even older):

• Debian Jessie
• LinuxMint 18
• Ubuntu 16.10
• Zorin 14
• ElementaryOS 0.4
  and/or a very dated retropie_setup.sh script [0].

These versions are tested in scriptmodules/system.sh [1], if they report an OS Version of 8 the resources folder is not copied by scriptmodules/supplementary/emulationstation[-dev].sh[2].

NB: The above retropie_packages.sh calls eventually the scriptmodule emulationstation-dev.sh (which is an wrapper around scriptmodule emulationstation.sh).

If you want to keep the sources of ES (below RetroPie-Setup/tmp/build/) then run

1. retropie_packages.sh emulationstation-dev sources
2. retropie_packages.sh emulationstation-dev build
3. retropie_packages.sh emulationstation-dev install

[0] https://retropie.org.uk/forum/post/186708
[1] https://github.com/RetroPie/RetroPie-Setup/blob/fb5a22cfb75ea977484a0631949c80a263ce39c7/scriptmodules/system.sh#L211
[2] https://github.com/RetroPie/RetroPie-Setup/blob/fb5a22cfb75ea977484a0631949c80a263ce39c7/scriptmodules/supplementary/emulationstation.sh#L192