Fix WordPress Download Failed Errors on Update or installing new plugins/themes

If you run into problems trying to update WordPress, install new plugins/themes, it could be caused by the temporary directory WordPress uses for downloads. You can easily fix this by defining a WP_TEMP_DIR in your wp-config.php file below.  

WordPress download Failed Errors on Update or installing new plugins/themes

Download failed.: Destination directory for file streaming does not exist or is not writable.

Installation Failed

Define a WP_TEMP_DIR in your wp-config.php file

If you've encountered the issues, you can simply follow the steps below to resolve them.

1. Open you wp-config.php file with 

2. You should see this code towards the top of the file:

   * @package WordPress
    */
   
   // ** MySQL settings - You can get this info from your web host ** //
   /** The name of the database for WordPress */
   define('DB_NAME', 'dbname');

   Place this definition of define('WP_TEMP_DIR', ABSPATH . 'wp-content/'); in-between the lines mentioned above, so it ends up looking like this when you've completed it:

   * @package WordPress
    */
    
   define('WP_TEMP_DIR', ABSPATH . 'wp-content/');
   
   // ** MySQL settings - You can get this info from your web host ** //
   /** The name of the database for WordPress */
   define('DB_NAME', 'dbname');

   Now Save your wp-config.php file.

3. Try to update WordPress, installing new plugins/themes  again, if for some reason it is still failing, be sure to check file permissions on your wp-content folder, and ensure it's set to read and write so that the server can write to it.