Title: Fatal error: Class ‘WP_Site’
Last modified: November 2, 2016

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# Fatal error: Class ‘WP_Site’

 *  [jacho](https://wordpress.org/support/users/jacho/)
 * (@jacho)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-class-wp_site/)
 * Hello
 * When I try to make update Stream: 3.0.4 to 3.1.1 I on multisite WP get:
    “Fatal
   error: Class ‘WP_Site’ not found in /wp-content/plugins/stream/includes/functions.
   php on line 100”
 * I suppose there is a problem with multisite with new Stream version.
    Please 
   help me.
 * J

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 * 0 replies
 * 1 participant
 * Last activity: [9 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-class-wp_site/)
 * Status: not resolved