Title: Error with plugin.php
Last modified: August 21, 2016

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# Error with plugin.php

 *  Resolved [kmessinger](https://wordpress.org/support/users/kmessinger/)
 * (@kmessinger)
 * [11 years, 11 months ago](https://wordpress.org/support/topic/error-with-pluginphp/)
 * Have this error after upgrade last night.
    Warning: call_user_func_array() [function.
   call-user-func-array]: First argument is expected to be a valid callback, ‘_show_post_preview’
   was given in /hermes/bosnaweb02a/b1658/d5.savethec/public_html/ourexcellentadventures.
   com/wp-includes/plugin.php on line 470
 * Not sure it has anything to do with the upgrade but the timing is right.

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Moderator [Dominik Schilling](https://wordpress.org/support/users/ocean90/)
 * (@ocean90)
 * WordPress Core Developer
 * [11 years, 11 months ago](https://wordpress.org/support/topic/error-with-pluginphp/#post-5092036)
 * Hello kmessinger,
 * which PHP version are you using? Any plugins active? Does the error still exists,
   when you re-upload the [package](https://wordpress.org/download/nightly/) via
   FTP?
 *  Thread Starter [kmessinger](https://wordpress.org/support/users/kmessinger/)
 * (@kmessinger)
 * [11 years, 11 months ago](https://wordpress.org/support/topic/error-with-pluginphp/#post-5092093)
 * Hi Dominick,
 * Re-loaded via ftp. New message, Parse error: syntax error, unexpected ‘*’ in /
   hermes/bosnaweb02a/b1658/d5.savethec/public_html/ourexcellentadventures.com/wp-
   includes/admin-bar.php on line 856
 * No plugins. Only themes in themes folder are twenty fourteen and twenty thirteen.
   PHP v. 5.3.
 * Thanks,
    Keith
 *  Thread Starter [kmessinger](https://wordpress.org/support/users/kmessinger/)
 * (@kmessinger)
 * [11 years, 11 months ago](https://wordpress.org/support/topic/error-with-pluginphp/#post-5092135)
 * The latest build, WordPress 4.0-beta1-20140713-20140713, solved my problem.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Error with plugin.php’ is closed to new replies.

 * In: [Alpha/Beta/RC](https://wordpress.org/support/forum/alphabeta/)
 * 3 replies
 * 2 participants
 * Last reply from: [kmessinger](https://wordpress.org/support/users/kmessinger/)
 * Last activity: [11 years, 11 months ago](https://wordpress.org/support/topic/error-with-pluginphp/#post-5092135)
 * Status: resolved

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