Subject: bug#25877: 26.0.50;M-x list-packages Invalid version list error

From: Glenn Morris <[email-masked]>
Date: Sun, 26 Feb 2017 18:14:49 -0500

Carlo Tambuatco wrote:

> Load-path shadows:
[...]
> ~/.emacs.d/site-lisp/package hides
> /Applications/MacPorts/Emacs.app/Contents/Resources/lisp/emacs-lisp/package

It seems that you aren't using the package.el that comes with Emacs.