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Q: how do I populate the cache in EMMS?

I just did a fresh install from source of Emacs, and then got the emms package from melpa. When I go to populate the EMMS cache, I get the following error message:

Error running timer ‘later-do-timer’: (file-missing "Searching for program" "No such file or directory" "emms-print-metadata")

I've gotten this message in the past, and it's always puzzled me. What is this executable (emms-print-metadata), where do I get it, and how do I install it?

I'm pretty sure I can get emms as a .deb package and install it through my distro's package manager, but that's not the point. I'd like to install EMMS through the Emacs package manager.

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emms-print-metadata is a C shim to enable use of libtag for extracting metadata from music files.

It should only be needed if you have done something like

(require 'emms-info-libtag)
(setq emms-info-functions '(emms-info-libtag))

in yr config. See the EMMS manual for more information.

If libtag is installed on yr system and you want to use it, you need to get the emms source:

git clone https://git.savannah.gnu.org/git/emms.git

There you will find the C source of emms-print-metadata and a makefile.

Hope this helps.

  • Right you are; I put the emms-info-libtag part in my init file years ago and forgot all about it. It surprises me that there's an executable involved, but so it goes. – Dan Nov 13 '18 at 14:04

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