Can't install plugin and theme
<p>i want to install some plugin but show</p>

<pre><code>Installation failed: Could not create directory.
</code></pre>

<p>that i find some solution add some code to wp-config</p>

<pre><code>//* FTP Settings **/
/** wp-content path */

define('FS_METHOD', 'ftpext');
define('FTP_BASE', '/');

define('FTP_CONTENT_DIR', '/wp-content/');
define('FTP_PLUGIN_DIR', '/wp-content/plugins/');
define('FTP_USER', 'ftpuser');
define('FTP_PASS', 'ftppewd');
define('FTP_HOST', 'domain.com');

define('FTP_SSL', false);

define("FS_METHOD", "direct");
define("FS_CHMOD_DIR", 0777);
define("FS_CHMOD_FILE", 0777);
</code></pre>

<p>that the error message change to</p>

<blockquote>
  <p>Installation failed: Unable to connect to the filesystem. Please
  confirm your credentials</p>
</blockquote>

<p>.
i use IIS 8
use ftp client the ftp account has full access right</p>