PKP PLN (LOCKSS) plugin not working

Hi, I’m new to OJS. We are using 2.4.8. We are trying to enable PKP PLN plugin. After clicking the “enable” button under PKP PLN plugin, we got the error notification saying that "ZipArchive support must be enabled to proceed. I then installed ZipArchive package on our Fedora(23) server (see system message below). But we still get the same notification error.

Last metadata expiration check: 1:25:48 ago on Wed Oct 18 11:27:58 2017.
Package ZipArchive-4.1.2-6.fc23.x86_64 is already installed, skipping.
Dependencies resolved.
Nothing to do.

What else should I do to make it to work?

Thanks so much.


Hi @wangyo

Have you enable on your php.ini and restart your server to load your modifications?
This kind of package requires be enabled as php extension and webserver reload.
Hope it helps.

Israel Cefrin
Public Knowledge Project Team

Hi Israel,

I checked to see that zip extension (including is missing. I then installed php-pecl-zip and restarted Apache. Now the PKP PLN is enabled!

Thank you so much for your help!