Downloaded to Mac OSX 10.9
Tried to install on my website WordPress plug in
Got this message
Installing Plugin from uploaded file: 296442_wpmu-dev-dashboard-3.4.1.zip
Unpacking the package…
Installing the plugin…
Destination folder already exists. C:disappointed:inetpub/vhosts/basingstokehypnotherapy.org/httpdocs/wp-content/plugins/wpmudev-updates/
Plugin install failed.
Whats the way to open this up and download plugins?