Title: Warning: array_keys() expects parameter 1 to be array…
Last modified: September 1, 2016

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# Warning: array_keys() expects parameter 1 to be array…

 *  [PaulStranger](https://wordpress.org/support/users/paulstranger/)
 * (@paulstranger)
 * [9 years, 10 months ago](https://wordpress.org/support/topic/warning-array_keys-expects-parameter-1-to-be-array-1/)
 * After install i see this message in plugin settings page:
 * > Warning: array_keys() expects parameter 1 to be array, string given in /home/
   > titanbig/tire-china.ru/docs/wp-content/plugins/wp-async-css/wp-async-css.php
   > on line 196
 * Screenshot:
    [http://image.prntscr.com/image/9e448595f76449f08cc249defd729c65.png](http://image.prntscr.com/image/9e448595f76449f08cc249defd729c65.png)
 * I could not remove this plug-in the usual way. I had to remove manually via FTP.
   Very sad
 * WP 4.5.3 / WP theme “the7”
 * [https://wordpress.org/plugins/wp-async-css/](https://wordpress.org/plugins/wp-async-css/)

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [Robert S.](https://wordpress.org/support/users/robsat91/)
 * (@robsat91)
 * [9 years, 10 months ago](https://wordpress.org/support/topic/warning-array_keys-expects-parameter-1-to-be-array-1/#post-7563953)
 * Hello!
 * Sorry for the unfortunate situation.
    I think it’s me that have not done my job
   with default data when the plugin is not configured correctly. I’ll check it 
   out and keep it in min when developing the new release thats coming mid august
   hopefully! I’ll get back to you!
 *  [ufopsi](https://wordpress.org/support/users/ufopsi/)
 * (@ufopsi)
 * [9 years, 10 months ago](https://wordpress.org/support/topic/warning-array_keys-expects-parameter-1-to-be-array-1/#post-7563957)
 * Hi, same here! Until yesterday it was working fine but, since I saw my site slightly
   broken before loading everything, I decided to see which CSS should be excluded.
   The error is the same as above:
    `Warning: in_array() expects parameter 2 to 
   be array, null given in wp-content/plugins/wp-async-css/wp-async-css.php on line
   287`
 * I use Jupiter 5.
 * Hope to see a fix coming. For now, I must disable your plugin.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Warning: array_keys() expects parameter 1 to be array…’ is closed to 
new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/wp-async-css_8f9393.svg)
 * [WP Async CSS](https://wordpress.org/plugins/wp-async-css/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-async-css/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-async-css/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-async-css/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-async-css/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-async-css/reviews/)

 * 2 replies
 * 3 participants
 * Last reply from: [ufopsi](https://wordpress.org/support/users/ufopsi/)
 * Last activity: [9 years, 10 months ago](https://wordpress.org/support/topic/warning-array_keys-expects-parameter-1-to-be-array-1/#post-7563957)
 * Status: not resolved