Yes, my configuration is the same as https://github.com/melpa/melpa#usage <https://github.com/melpa/melpa#usage>



For information about GNU Emacs and the GNU system, type C-h C-a.
Opening TLS connection to ‘melpa.org’...
Opening TLS connection with ‘gnutls-cli --x509cafile nil -p 443 melpa.org’...failed
Opening TLS connection with ‘gnutls-cli --x509cafile nil -p 443 melpa.org --protocols ssl3’...failed
Opening TLS connection with ‘openssl s_client -connect melpa.org:443 -no_ssl2 -ign_eof’...
error in process sentinel: Error retrieving: http://elpa.gnu.org/packages/archive-contents (error connection-failed "failed with code 22
" :host "elpa.gnu.org" :service 80)
error in process sentinel: Error retrieving: http://elpa.gnu.org/packages/archive-contents (error connection-failed "failed with code 22
" :host "elpa.gnu.org" :service 80)
Opening TLS connection with ‘openssl s_client -connect melpa.org:443 -no_ssl2 -ign_eof’...done
Opening TLS connection to ‘melpa.org’...done
Mark saved where search started
Package refresh done
Install package ‘org-20160215’? (y or n) y
Package menu: Operation started [Installing 1]
Saving file /Users/mac/.emacs...
Wrote /Users/mac/.emacs [2 times]
Contacting host: elpa.gnu.org:80
Parsing tar file...done
cl--assertion-failed: Assertion failed: (or (= (buffer-size tar-data-buffer) (buffer-size)) (eq tar-data-swapped (> (buffer-size tar-data-buffer) (buffer-size))))





It seems that I can not connect to elpa, although I can connect melpa, I still can not install packages through melpa.

What’s the problem?











> On 19 Feb 2016, at 23:05, Josiah Schwab <jschwab@gmail.com> wrote:
> 
> Hello Junxiang,
> 
> On 19 February 2016 at 06:11 PST, 童俊翔 wrote:
> 
>> error in process filter: Error retrieving: https://melpa.org/packagesarchive-contents (error http 404) [2 times]
>> 
>> What’s the problem?
> 
> This suggests to me that you forgot the final slash in the MELPA URL.
> 
> Does your configuration match https://github.com/melpa/melpa#usage ?
> 
> Best,
> Josiah