Title: Warning: Cannot modify header information
Last modified: August 18, 2016

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# Warning: Cannot modify header information

 *  Resolved [markdickenson](https://wordpress.org/support/users/markdickenson/)
 * (@markdickenson)
 * [18 years, 5 months ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-7-2/)
 * Hello,
 * Note: I accidently posted this in the installation section..I tried to click 
   cancel on my browser..sorry about that
 * I am getting the Warning: Cannot Modify Header information..headers already sent
   by…every time I try to activate a plugin, deactivate a plugin, or try to post.
 * The error says the problem is with functions.php:72.. I did the trick where you
   put your cursor between the ? and > and held the delete key for more than 15 
   seconds..and added back the > but it still didn’t work
 * Line 72 looks like this: <?php
 * Any suggestions would be appreciated. This is my first blog so go easy on me 
   🙂
 * Thanks for your time
 * -Mark

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

 *  [moshu](https://wordpress.org/support/users/moshu/)
 * (@moshu)
 * [18 years, 5 months ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-7-2/#post-657276)
 * [moved]
 * What happens if you switch themes?
 *  Thread Starter [markdickenson](https://wordpress.org/support/users/markdickenson/)
 * (@markdickenson)
 * [18 years, 5 months ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-7-2/#post-657279)
 * Hello Moshu,
 * I was able to fix the problems
 * There was a line break in between line 71 and 72..so I just hit the backspace
   key while placing my curson at the beginning of line 72 and all is well
 * I also noticed when I switched themes, I am fine..but that was a good learning
   exp.
 * Thanks for the reply
 * -Mark

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

The topic ‘Warning: Cannot modify header information’ is closed to new replies.

## Tags

 * [Cannot modify header information](https://wordpress.org/support/topic-tag/cannot-modify-header-information/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [markdickenson](https://wordpress.org/support/users/markdickenson/)
 * Last activity: [18 years, 5 months ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-7-2/#post-657279)
 * Status: resolved

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