Title: [Plugin: Search Unleashed] Install error
Last modified: August 20, 2016

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# [Plugin: Search Unleashed] Install error

 *  [rcpgmr](https://wordpress.org/support/users/rcpgmr/)
 * (@rcpgmr)
 * [14 years, 8 months ago](https://wordpress.org/support/topic/plugin-search-unleashed-install-error/)
 * My client is running WordPress 3.1.3.
 * When I try to intall this plugin I get the error: Class ‘DefaultEngine’ not found
   in /wpress/wp-content/plugins/search-unleashed/models/search-engine.php on line
   163
 *  Has anyone else encountered this error and hopefully solved it?
 *  I can’t upgrade WordPress on yahoo host (I know yahoo may not be the best host)
   because MySQL is not the latest version.
 * Thank you!
 * [http://wordpress.org/extend/plugins/search-unleashed/](http://wordpress.org/extend/plugins/search-unleashed/)

The topic ‘[Plugin: Search Unleashed] Install error’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/search-unleashed.svg)
 * [Search Unleashed](https://wordpress.org/plugins/search-unleashed/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/search-unleashed/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/search-unleashed/)
 * [Active Topics](https://wordpress.org/support/plugin/search-unleashed/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/search-unleashed/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/search-unleashed/reviews/)

 * 0 replies
 * 1 participant
 * Last reply from: [rcpgmr](https://wordpress.org/support/users/rcpgmr/)
 * Last activity: [14 years, 8 months ago](https://wordpress.org/support/topic/plugin-search-unleashed-install-error/)
 * Status: not resolved