I am trying to install a plugin for Wordpress on Ubuntu 14.04 Server but it keeps failing. I assume it is a rights issue because of a directory not being able to create. This is my last ditch effort I have Googled and looked all I could but nothing has worked. Here is the error it happens on any plugin:
Downloading install package from https://downloads.wordpress.org/plugin/syntaxhighlighter.zip…
Unpacking the package…
Could not create directory.
sudo cp -R syntaxhighlighter /var/www/wp-content/plugins
. If you are not working on the command line, you will have to file a bug report against the graphical tool you are using to manage WP.