Title: Plugin activation in WP3.0
Last modified: August 19, 2016

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# Plugin activation in WP3.0

 *  [mgoloyugo](https://wordpress.org/support/users/mgoloyugo/)
 * (@mgoloyugo)
 * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-activation-in-wp30/)
 * Hi Experts,
 * Can someone please help me about this:
 * The plugin generated 858 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.
 * how can is solve that issue? and what really is the cause of that problem?
 * Thanks,
    moises

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

 *  [Callum Macdonald](https://wordpress.org/support/users/chmac/)
 * (@chmac)
 * [15 years, 9 months ago](https://wordpress.org/support/topic/plugin-activation-in-wp30/#post-1542164)
 * I think this is an erroneous error. Does the plugin work as expected? I have 
   the same problem with the WP Mail SMTP plugin I wrote, but despite the error,
   the plugin works fine. I can’t figure out what causes the error, nothing is output
   from the plugin.
 * I suggest you ignore the error and see if the plugin works anyway.
 *  Moderator [James Huff](https://wordpress.org/support/users/macmanx/)
 * (@macmanx)
 * [15 years, 9 months ago](https://wordpress.org/support/topic/plugin-activation-in-wp30/#post-1542166)
 * Regarding the “headers already sent” error:
 * [http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F](http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F)

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

The topic ‘Plugin activation in WP3.0’ is closed to new replies.

 * 2 replies
 * 3 participants
 * Last reply from: [James Huff](https://wordpress.org/support/users/macmanx/)
 * Last activity: [15 years, 9 months ago](https://wordpress.org/support/topic/plugin-activation-in-wp30/#post-1542166)
 * Status: not resolved

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