Title: Installation/Activation Error Warnings
Last modified: August 22, 2016

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# Installation/Activation Error Warnings

 *  Resolved [CEMBTW](https://wordpress.org/support/users/cembtw/)
 * (@cembtw)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/installationactivation-error-warnings/)
 * Initial activation of Link Library gives me the following message:
    `Notice: 
   Constant LINK_LIBRARY_ADMIN_PAGE_NAME already defined in [my path stuff]\wordpress\
   wp-content\plugins\link-library\link-library-admin.php on line 7`
 * Deactivating and then reactivating gives the following error:
 *     ```
       WordPress database error: [Table 'wp_links_extrainfo' already exists]
       CREATE TABLE wp_links_extrainfo( link_id bigint(20) NOT NULL DEFAULT "0", link_second_url varchar(255) CHARACTER SET utf8 DEFAULT NULL, link_telephone varchar(128) CHARACTER SET utf8 DEFAULT NULL, link_email varchar(128) CHARACTER SET utf8 DEFAULT NULL, link_visits bigint(20) DEFAULT "0", link_reciprocal varchar(255) DEFAULT NULL, link_submitter varchar(255) DEFAULT NULL, link_submitter_name VARCHAR( 128 ) NULL, link_submitter_email VARCHAR( 128 ) NULL, link_textfield TEXT NULL, link_no_follow VARCHAR(1) NULL, link_featured VARCHAR(1) NULL, link_manual_updated VARCHAR(1) NULL, UNIQUE KEY link_id (link_id) )
       ```
   
 * Re: possible conflicts—I don’t think any of my other plugins deal with WordPress’
   linking system at all. The links admin wasn’t even visible until I activated 
   Link Library.
 * This set of errors happens after uninstalling and installing, as well.
    Thanks.
 * [https://wordpress.org/plugins/link-library/](https://wordpress.org/plugins/link-library/)

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

 *  [Alice Kaye](https://wordpress.org/support/users/alice-kaye/)
 * (@alice-kaye)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/installationactivation-error-warnings/#post-5856460)
 * I decided to piggyback off of your thread. I’m getting an activation error after
   trying to install this plugin, too. Scared the crap out of me, too.
 * `Plugin could not be activated because it triggered a fatal error.`
 * Please look into this. 🙂
 *  Plugin Author [Yannick Lefebvre](https://wordpress.org/support/users/jackdewey/)
 * (@jackdewey)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/installationactivation-error-warnings/#post-5856470)
 * I have just pushed out a release to resolve the initial fatal error. Still working
   on fixing the reactivation message about the database already being present. 
   Stay tuned.
 *  Plugin Author [Yannick Lefebvre](https://wordpress.org/support/users/jackdewey/)
 * (@jackdewey)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/installationactivation-error-warnings/#post-5856484)
 * I released a second update to get rid of that database error and unexpected output
   if you deactivate and reactivate the plugin.
 *  [Alice Kaye](https://wordpress.org/support/users/alice-kaye/)
 * (@alice-kaye)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/installationactivation-error-warnings/#post-5856486)
 * Hi Yannick, thanks for getting on that so quickly.
 * So now that these two updates have taken place, I should be safe with installing
   it now, yeah? That error freaked me out last night, lol.
 *  Plugin Author [Yannick Lefebvre](https://wordpress.org/support/users/jackdewey/)
 * (@jackdewey)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/installationactivation-error-warnings/#post-5856487)
 * Yes, you should have no trouble installing the plugin now. Don’t worry about 
   the message you got, it’s only WordPress’ way of protecting you from plugin code
   that has errors.
 *  [Alice Kaye](https://wordpress.org/support/users/alice-kaye/)
 * (@alice-kaye)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/installationactivation-error-warnings/#post-5856488)
 * Great to know. Thanks Yannick!
 *  Thread Starter [CEMBTW](https://wordpress.org/support/users/cembtw/)
 * (@cembtw)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/installationactivation-error-warnings/#post-5856505)
 * Thanks for the updates.

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

The topic ‘Installation/Activation Error Warnings’ is closed to new replies.

 * ![](https://ps.w.org/link-library/assets/icon-256x256.jpg?rev=971117)
 * [Link Library](https://wordpress.org/plugins/link-library/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/link-library/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/link-library/)
 * [Active Topics](https://wordpress.org/support/plugin/link-library/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/link-library/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/link-library/reviews/)

 * 7 replies
 * 3 participants
 * Last reply from: [CEMBTW](https://wordpress.org/support/users/cembtw/)
 * Last activity: [11 years, 3 months ago](https://wordpress.org/support/topic/installationactivation-error-warnings/#post-5856505)
 * Status: resolved