Title: WordPress 4.0 Compatibility
Last modified: August 22, 2016

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# WordPress 4.0 Compatibility

 *  [mkormendy](https://wordpress.org/support/users/mkormendy/)
 * (@mkormendy)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/wordpress-40-compatibility-4/)
 * I installed this plugin hoping that it would work on 4.0 but I get an error at
   the top of my plugins page saying: The plugin generated 1029 characters of unexpected
   output during activation. If you notice “headers already sent” messages, problems
   with syndication feeds or other issues, try deactivating or removing this plugin.
 * Can we get the plugin updated for 4.0 compliance?
 * [https://wordpress.org/plugins/backup-scheduler/](https://wordpress.org/plugins/backup-scheduler/)

Viewing 8 replies - 1 through 8 (of 8 total)

 *  Plugin Author [Sed Lex](https://wordpress.org/support/users/sedlex/)
 * (@sedlex)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/wordpress-40-compatibility-4/#post-5500441)
 * it is compliant, …
 * I do not why WP generates some times errors on activation.
 * Reactivate the plugin a couple of time : should work at the end
 *  Thread Starter [mkormendy](https://wordpress.org/support/users/mkormendy/)
 * (@mkormendy)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/wordpress-40-compatibility-4/#post-5500443)
 * I have tried reactivating the plugin 5 times now .. still the same message.
 *  Plugin Author [Sed Lex](https://wordpress.org/support/users/sedlex/)
 * (@sedlex)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/wordpress-40-compatibility-4/#post-5500445)
 * This is strange as it works on my dev / prod server…
 * It does not says which 1029 characters of unexpected output is displayed ?
 *  Thread Starter [mkormendy](https://wordpress.org/support/users/mkormendy/)
 * (@mkormendy)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/wordpress-40-compatibility-4/#post-5500453)
 * No worries, I am going to find out why this is occurring, by following:
 * [http://thehungrycoder.com/wordpress/how-i-have-solved-the-the-plugin-generated-xxxx-characters-of-unexpected-output-during-activation-problem.html](http://thehungrycoder.com/wordpress/how-i-have-solved-the-the-plugin-generated-xxxx-characters-of-unexpected-output-during-activation-problem.html)
 * Let me get back to you.
 *  Plugin Author [Sed Lex](https://wordpress.org/support/users/sedlex/)
 * (@sedlex)
 * [11 years, 6 months ago](https://wordpress.org/support/topic/wordpress-40-compatibility-4/#post-5500763)
 * Any news ?
 *  Thread Starter [mkormendy](https://wordpress.org/support/users/mkormendy/)
 * (@mkormendy)
 * [11 years, 6 months ago](https://wordpress.org/support/topic/wordpress-40-compatibility-4/#post-5500765)
 * Been out of town on business, but plan to look at this in my upcoming holiday
   vacation.
 *  Plugin Author [Sed Lex](https://wordpress.org/support/users/sedlex/)
 * (@sedlex)
 * [11 years, 6 months ago](https://wordpress.org/support/topic/wordpress-40-compatibility-4/#post-5500766)
 * It would be very helpful if you manage to do that !!
 * Thanks
 *  Plugin Author [Sed Lex](https://wordpress.org/support/users/sedlex/)
 * (@sedlex)
 * [11 years, 5 months ago](https://wordpress.org/support/topic/wordpress-40-compatibility-4/#post-5500796)
 * Dear mkormendy,
 * Have you manage to do it ?
    Please believe that I will do my best to help you
   in any matter.

Viewing 8 replies - 1 through 8 (of 8 total)

The topic ‘WordPress 4.0 Compatibility’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/backup-scheduler_f8f7f7.svg)
 * [Backup Scheduler](https://wordpress.org/plugins/backup-scheduler/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/backup-scheduler/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/backup-scheduler/)
 * [Active Topics](https://wordpress.org/support/plugin/backup-scheduler/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/backup-scheduler/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/backup-scheduler/reviews/)

 * 8 replies
 * 2 participants
 * Last reply from: [Sed Lex](https://wordpress.org/support/users/sedlex/)
 * Last activity: [11 years, 5 months ago](https://wordpress.org/support/topic/wordpress-40-compatibility-4/#post-5500796)
 * Status: not resolved