Title: Fatal Error Message
Last modified: August 30, 2016

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# Fatal Error Message

 *  Resolved [aaronbenedict](https://wordpress.org/support/users/aaronbenedict/)
 * (@aaronbenedict)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-message-149/)
 * Hi.
 * I’ve installed your plug-in and when I activated it I received the following 
   error message:
 * > Fatal error: Cannot redeclare class WPCom_Markdown in /home/quovadisny/webapps/
   > bfwp/wp-content/plugins/wp-markdown-editor/jetpack/markdown/easy-markdown.php
   > on line 34
 * Is there something of the server that needs to be changes or is it something 
   else?
 * Thanks in Advance,
    Aaron Benedict
 * [https://wordpress.org/plugins/wp-markdown-editor/](https://wordpress.org/plugins/wp-markdown-editor/)

Viewing 7 replies - 1 through 7 (of 7 total)

 *  Plugin Author [Ha Ho](https://wordpress.org/support/users/hoducha/)
 * (@hoducha)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-message-149/#post-6745008)
 * You should deactivate the Markdown module from Jetpack settings.
 * Explanation: The plugin uses Jetpack Markdown module for parsing and saving contents.
   The module is included in the plugin in order to make it works independently.
   So, you could not activate the plugin if the Jetpack Markdown module is activated.
 *  [Li-An](https://wordpress.org/support/users/li-an/)
 * (@li-an)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-message-149/#post-6745075)
 * Maybe the plugin could detect another version of Jetpack Markdown and showed 
   an alert message.
 *  Plugin Author [Ha Ho](https://wordpress.org/support/users/hoducha/)
 * (@hoducha)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-message-149/#post-6745096)
 * [@li-an](https://wordpress.org/support/users/li-an/): I will update the plugin
   to detect if Jetpack Markdown is activated. But I recommend that you should activate
   only one Markdown plugin to prevent unexpected errors.
 *  Thread Starter [aaronbenedict](https://wordpress.org/support/users/aaronbenedict/)
 * (@aaronbenedict)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-message-149/#post-6745142)
 * [@ha](https://wordpress.org/support/users/ha/) Ho,
 * Thanks for your help. I disabled the jetpack module and I was able to activate
   the plug-in.
 *  Plugin Author [Ha Ho](https://wordpress.org/support/users/hoducha/)
 * (@hoducha)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-message-149/#post-6745203)
 * You’re welcome. I’ll mark this ticket as resolved and add the code to detect 
   if Jetpack Markdown is activated in the next release.
 *  [kermit666](https://wordpress.org/support/users/kermit666/)
 * (@kermit666)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-message-149/#post-6745327)
 * Thanks, but you should probably make a note of this in the installation instructions
   and the FAQ. Seems pretty important and I didn’t even notice it, so after just
   installing it and activating it after Jetpack (which you mention should be activated
   first), I got into this error state.
 *  [lukescammell](https://wordpress.org/support/users/lukescammell/)
 * (@lukescammell)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-message-149/#post-6745328)
 * I’ve just run into this as well. Reading the plugin I thought you had to install
   and activate the Jetpack plugin Markdown module.

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘Fatal Error Message’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/wp-markdown-editor_bdaaaa.svg)
 * [WP Markdown Editor](https://wordpress.org/plugins/wp-markdown-editor/)
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 * 7 replies
 * 5 participants
 * Last reply from: [lukescammell](https://wordpress.org/support/users/lukescammell/)
 * Last activity: [10 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-message-149/#post-6745328)
 * Status: resolved