Title: Fatal error when installing
Last modified: November 9, 2020

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# Fatal error when installing

 *  [wperchuc](https://wordpress.org/support/users/wperchuc/)
 * (@wperchuc)
 * [5 years, 6 months ago](https://wordpress.org/support/topic/fatal-error-when-installing-20/)
 * Hi, I’m getting a fatal error when trying to install the plugin.
 * `Fatal error: Cannot redeclare Clue\StreamFilter\append() (previously declared
   in /home/bunnyproject/ftp/vetnolimits_new/wp-content/plugins/paynow-woocommerce-
   master/vendor/clue/stream-filter/src/functions.php:17) in /home/bunnyproject/
   ftp/vetnolimits_new/wp-content/plugins/woo-mailerlite/vendor/clue/stream-filter/
   src/functions.php on line 17`
 * Could you help with this?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffatal-error-when-installing-20%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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

 *  [joshb06](https://wordpress.org/support/users/joshb06/)
 * (@joshb06)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/fatal-error-when-installing-20/#post-13756964)
 * Getting the same issue. I have to keep debugging and deleting the plugin’s directory
   
   Fatal error: Cannot redeclare Clue\StreamFilter\append() (previously declared
   in /hermes/bosnacweb04/bosnacweb04cf/b1068/ipg.joshbenson0654763/howardcountydads.
   com-redirect/wp/wp-content/plugins/themeisle-companion/vendor/clue/stream-filter/
   src/functions.php:105) in /hermes/bosnacweb04/bosnacweb04cf/b1068/ipg.joshbenson0654763/
   howardcountydads.com-redirect/wp/wp-content/plugins/woo-mailerlite/vendor/clue/
   stream-filter/src/functions.php on line 27
 *  [creationsunivers](https://wordpress.org/support/users/creationsunivers/)
 * (@creationsunivers)
 * [5 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-when-installing-20/#post-14157866)
 * Had the same issue with the “Amelia” plugin.
    [https://wordpress.org/plugins/ameliabooking/](https://wordpress.org/plugins/ameliabooking/)
 * [09-Mar-2021 21:22:50 UTC] PHP Fatal error: Cannot redeclare Clue\StreamFilter\
   register() (previously declared in /home/andrcrck/public_html/wp-content/plugins/
   ameliabooking/vendor/clue/stream-filter/src/functions.php:140) in /home/andrcrck/
   public_html/wp-content/plugins/woo-mailerlite/vendor/clue/stream-filter/src/functions.
   php on line 127

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

The topic ‘Fatal error when installing’ is closed to new replies.

 * ![](https://ps.w.org/woo-mailerlite/assets/icon-256x256.png?rev=3083985)
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 * [Frequently Asked Questions](https://wordpress.org/plugins/woo-mailerlite/#faq)
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## Tags

 * [critical error](https://wordpress.org/support/topic-tag/critical-error/)

 * 2 replies
 * 3 participants
 * Last reply from: [creationsunivers](https://wordpress.org/support/users/creationsunivers/)
 * Last activity: [5 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-when-installing-20/#post-14157866)
 * Status: not resolved