Title: [Plugin: Timeline For Categories] Error Message
Last modified: August 20, 2016

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# [Plugin: Timeline For Categories] Error Message

 *  [truthlighthouse](https://wordpress.org/support/users/truthlighthouse/)
 * (@truthlighthouse)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-timeline-for-categories-error-message/)
 * I like the idea but when I install this plugin, immediately at the top of the
   plugin screen after the install, I get this error.
 * >  Warning: session_start() [function.session-start]: Cannot send session cache
   > limiter – headers already sent (output started at /home/content/25/5853525/
   > html/wp-content/plugins/timeline-for-categories/timeline-for-categories.php:
   > 1) in /home/content/25/5853525/html/wp-content/plugins/tumblrize/tumblrize.
   > php on line 58
 * I figured it had a problem with my Tumblrize plugin so I deactivated it. When
   I did, I then get the error mentioned in the notes
 * > The plugin generated 3 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.
 * So I disregard it like the notes say but when I go back to my categories and 
   try to put them in chronological order, I get
 * >  Warning: Cannot modify header information – headers already sent by (output
   > started at /home/content/25/5853525/html/wp-content/plugins/timeline-for-categories/
   > timeline-for-categories.php:1) in /home/content/25/5853525/html/wp-includes/
   > pluggable.php on line 881
 * I didn’t carry it further this time but a while back I was messing with this 
   plugin and disregarding the error messages but every time I added a category,
   it threw an error message. So I backed out and deactivated it.
 * I love the idea but hopefully it can get fixed.
 * [http://wordpress.org/extend/plugins/timeline-for-categories/](http://wordpress.org/extend/plugins/timeline-for-categories/)

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Author [Ramesh (thecodeisclear)](https://wordpress.org/support/users/thecodeisclear/)
 * (@thecodeisclear)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-timeline-for-categories-error-message/#post-2912119)
 * Thanks for the feedback. I will look into this issue. I had developed the plugin
   with a vanilla install of WordPress, so I didn’t get any issues. Let me get to
   the root of this ASAP.
 * Can you pls. list the other plugins that you had active/installed?
 *  Plugin Author [Ramesh (thecodeisclear)](https://wordpress.org/support/users/thecodeisclear/)
 * (@thecodeisclear)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-timeline-for-categories-error-message/#post-2912126)
 * [@truthlighthouse](https://wordpress.org/support/users/truthlighthouse/): The
   plugin error message has been fixed. Could you please test if this works now?
 * Thanks for your time.
 *  [Garance](https://wordpress.org/support/users/garanceashland/)
 * (@garanceashland)
 * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-timeline-for-categories-error-message/#post-2912169)
 * Your plugin zip is empty. It contains an image, a TXT file, but no plugin file.
 *  Plugin Author [Ramesh (thecodeisclear)](https://wordpress.org/support/users/thecodeisclear/)
 * (@thecodeisclear)
 * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-timeline-for-categories-error-message/#post-2912172)
 * [@garance](https://wordpress.org/support/users/garance/). I am not sure what 
   the problem is. Through SVN, I can see the .php file within the “trunk” folder
   as required. ([http://plugins.svn.wordpress.org/timeline-for-categories/trunk/](http://plugins.svn.wordpress.org/timeline-for-categories/trunk/)).
   While I resolve this, you can download the plugin from [my website](http://thecodeisclear.in/wp-content/plugins/download-monitor/download.php?id=15).
 * Thanks for your patience.
 *  Plugin Author [Ramesh (thecodeisclear)](https://wordpress.org/support/users/thecodeisclear/)
 * (@thecodeisclear)
 * [13 years, 8 months ago](https://wordpress.org/support/topic/plugin-timeline-for-categories-error-message/#post-2912187)
 * There was a problem with the SVN structure and I had to place the file in the
   right sub-directory. The .zip now contains the plugin file. Thanks for using 
   my plugin.

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘[Plugin: Timeline For Categories] Error Message’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/timeline-for-categories.svg)
 * [Timeline For Categories](https://wordpress.org/plugins/timeline-for-categories/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/timeline-for-categories/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/timeline-for-categories/)
 * [Active Topics](https://wordpress.org/support/plugin/timeline-for-categories/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/timeline-for-categories/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/timeline-for-categories/reviews/)

 * 5 replies
 * 3 participants
 * Last reply from: [Ramesh (thecodeisclear)](https://wordpress.org/support/users/thecodeisclear/)
 * Last activity: [13 years, 8 months ago](https://wordpress.org/support/topic/plugin-timeline-for-categories-error-message/#post-2912187)
 * Status: not resolved