Title: Error in wordpress 4.0
Last modified: September 3, 2016

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# Error in wordpress 4.0

 *  [minple](https://wordpress.org/support/users/minple/)
 * (@minple)
 * [11 years, 10 months ago](https://wordpress.org/support/topic/error-in-wordpress-40/)
 * Hi Tran Tuan,
    I like this plugin but it has error. Can you fix it?
 * error 1: Notice: Undefined index: post in /var/www/nighty/wp-content/plugins/
   advance-post-prefix/advance_post_prefix.php on line 88
    error 2: Undefined variable:
   mode in /var/www/nighty/wp-content/plugins/advance-post-prefix/wpp_add.php on
   line 7 error ….. Thanks for reading!

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 * Last reply from: [minple](https://wordpress.org/support/users/minple/)
 * Last activity: [11 years, 10 months ago](https://wordpress.org/support/topic/error-in-wordpress-40/)