If you are creating a new plugin make sure that you have this in your main plugin file.
<?php
/*
Plugin Name: Name Of The Plugin
Plugin URI: http://URI_Of_Page_Describing_Plugin_and_Updates
Description: A brief description of the Plugin.
Version: The Plugin’s Version Number, e.g.: 1.0
Author: Name Of The Plugin Author
Author URI: http://URI_Of_The_Plugin_Author
*/
?>
http://codex.ww.wp.xz.cn/Writing_a_Plugin
If you are creating a new plugin make sure that you have this in your main plugin file.
<?php
/*
Plugin Name: Name Of The Plugin
Plugin URI: http://URI_Of_Page_Describing_Plugin_and_Updates
Description: A brief description of the Plugin.
Version: The Plugin’s Version Number, e.g.: 1.0
Author: Name Of The Plugin Author
Author URI: http://URI_Of_The_Plugin_Author
*/
?>
Refer:
http://codex.ww.wp.xz.cn/Writing_a_Plugin