Title: "Cannot modify header information" issue
Last modified: August 22, 2016

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# "Cannot modify header information" issue

 *  [foomarks](https://wordpress.org/support/users/foomarks/)
 * (@foomarks)
 * [11 years, 2 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-issue-1/)
 * I’m trying out the plugin on a fresh WP Install using the Twenty Fifteen theme.
   However, I’m running into a “Cannot modify header information” error:
 * ————————–
    No cached taxonomy detected – Computing fresh one
 * Warning: Cannot modify header information – headers already sent by (output started
   at /[mysite]/wp-content/plugins/wp-mediatagger/mediatagger.php:404) in /[mysite]/
   wp-includes/option.php on line 748
 * Warning: Cannot modify header information – headers already sent by (output started
   at /[mysite]/wp-content/plugins/wp-mediatagger/mediatagger.php:404) in /[mysite]/
   wp-includes/option.php on line 749
    ————————–
 * Anything I can do on my end to correct this issue?
 * [https://wordpress.org/plugins/wp-mediatagger/](https://wordpress.org/plugins/wp-mediatagger/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [phd38](https://wordpress.org/support/users/phd38/)
 * (@phd38)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/cannot-modify-header-information-issue-1/#post-5945571)
 * This should happen once – when the taxonomy is regenerated and then disappear.
   It just concerns the maintenance messages.

Viewing 1 replies (of 1 total)

The topic ‘"Cannot modify header information" issue’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/wp-mediatagger_656f7b.svg)
 * [WP MediaTagger](https://wordpress.org/plugins/wp-mediatagger/)
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 * [Support Threads](https://wordpress.org/support/plugin/wp-mediatagger/)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-mediatagger/unresolved/)
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## Tags

 * [header information](https://wordpress.org/support/topic-tag/header-information/)
 * [mediatagger](https://wordpress.org/support/topic-tag/mediatagger/)

 * 1 reply
 * 2 participants
 * Last reply from: [phd38](https://wordpress.org/support/users/phd38/)
 * Last activity: [11 years, 1 month ago](https://wordpress.org/support/topic/cannot-modify-header-information-issue-1/#post-5945571)
 * Status: not resolved