WordPress Network install error

Question

Reinstalling wordpress multisite

Warning: an existing wordpress network was detected.

I tried multiple solutions including dropping tables, resetting .htaccess and completely resetting wp_config. It installs fine the first time but when I log out and log in I get this error.

Answer 1

Just in case it helps anyone else, I was experiencing this error after I forget to manually clear my OpCache after making the changes to wp-config.php, so the database indicated a multisite network but wp-config did not reflect it. Clearing the OpCache fixed the problem.

Answer 2

Follow the steps in this order

1) Reset your wp-config.php file back to its original state, remove any MULTISITE references

2) Delete the .htaccess file or move it temporarily

3) Drop the following tables from your DB, use a tool like phpMyAdmin if you are not comfortable directly modifying table data

• wp_blogs
• wp_blog_versions
• wp_registration_log
• wp_site
• wp_sitemeta
• wp_signups
• wp_sitecategories

4) Log out and Log back into your site and initiate the Network Setup.

5) Recreate the .htaccess file with the copy pasted data

6) Modify the wp-config.php file, remember to paste those lines above the line where it says

/* That's all, stop editing! Happy blogging. */

Step 6 is important see below :

http://premium.wpmudev.org/forums/topic/multisite-not-working-warning-an-existing-wordpress-network-was-detected

Also read :

http://blog.ashfame.com/2010/07/remove-wordpress-multisite-data/