I want to install the package running:
M-x package-install RET markdown-mode RET
And I get the following error
package-install-from-archive: https://melpa.org/packages/markdown-mode-20180904.1601.el: Not found
Which is true, since doing via Firefox I get 404 error.
I have the following version of Emacs:
GNU Emacs 26.1 (build 1, x86_64-pc-linux-gnu, GTK + Version 3.22.30) of 2018-07-05
How can I install it?