I created php files for my plugin and added them to myplugin folder. Then I zipped myplugin folder as myplugin.zip. In Admin Panel of Wordpress I wanted to install my plugin to wordpress. I choosed this zip file and clicked to Install "Now button". Then Wordpress gave an error:
Unable to create directory wp-content/uploads/2013/05. Is its parent directory writable by the server?
What is the problem and how can I solve it? My OS is Linux
and I use XAMPP
server in my machine.