Title: WordPress 3.0 Install Problems
Last modified: August 19, 2016

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# WordPress 3.0 Install Problems

 *  [scrobby](https://wordpress.org/support/users/scrobby/)
 * (@scrobby)
 * [15 years, 10 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/)
 * Hi, I have been trying to install WordPress 3.0 on my site, and it keeps coming
   up with this message:
 * Fatal error: Call to undefined function is_multisite() in /home/scrobby1/public_html/
   wp-includes/wp-db.php on line 505
 * I have followed the install instructions exactly, any ideas? Any help will be
   greatly appreciated!

Viewing 11 replies - 1 through 11 (of 11 total)

 *  Thread Starter [scrobby](https://wordpress.org/support/users/scrobby/)
 * (@scrobby)
 * [15 years, 10 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/#post-1525206)
 * Ignore me! I forgot to upload 2 files!
 *  [yeka](https://wordpress.org/support/users/yeka/)
 * (@yeka)
 * [15 years, 9 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/#post-1525398)
 * which files ?
    same error …
 *  [adkbasecamp](https://wordpress.org/support/users/adkbasecamp/)
 * (@adkbasecamp)
 * [15 years, 9 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/#post-1525399)
 * Me to. What files?
 *  [adkbasecamp](https://wordpress.org/support/users/adkbasecamp/)
 * (@adkbasecamp)
 * [15 years, 9 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/#post-1525400)
 * I did a manual upgrade…. The Horror!
 * I think WP server was borked due to many people upgrading. Best to wait a bit
   for the fervor to die down.
 *  [ljdiaz](https://wordpress.org/support/users/ljdiaz/)
 * (@ljdiaz)
 * [15 years, 9 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/#post-1525401)
 * me too same error, but now Im getting tons and tons of problems just trying to
   restore my blog to its usual state
 *  [serialboxhpc](https://wordpress.org/support/users/serialboxhpc/)
 * (@serialboxhpc)
 * [15 years, 9 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/#post-1525402)
 * I hate people like Scrobby.
 * Why not tell the rest of the world which 2 files didn’t get uploaded?
 *  Moderator [Ipstenu (Mika Epstein)](https://wordpress.org/support/users/ipstenu/)
 * (@ipstenu)
 * 🏳️‍🌈 Advisor and Activist
 * [15 years, 9 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/#post-1525403)
 * Because they may not be the same for everyone 🙂
 * Just grab a new download and manually upload EVERYTHING 🙂
 *  [serialboxhpc](https://wordpress.org/support/users/serialboxhpc/)
 * (@serialboxhpc)
 * [15 years, 9 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/#post-1525404)
 * well.. i manually uploaded the files 3 times in a row.. and it now works. dunno
   what the prob was but obviously some missing files somewhere. couldn’t tell you
   which ones tho
 *  [Andrew Nacin](https://wordpress.org/support/users/nacin/)
 * (@nacin)
 * [15 years, 9 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/#post-1525408)
 * At the very least, you were missing a 3.0 version of wp-includes/functions.php,
   for what it’s worth.
 *  [ljdiaz](https://wordpress.org/support/users/ljdiaz/)
 * (@ljdiaz)
 * [15 years, 9 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/#post-1525411)
 * a solution that I did with this was I have had the WP 2.9.2 and had it all reuploaded
   on my installation. (except of course on the wp-content folder and wp-config.
   php file) then re-login and Im back again in 2.9.2 version… then tried upgrading
   again using the automatic update and now everything is fine….
 * I dont know about the 2 files Scrobby is talking about, cause I checked the 2.9.2
   files against the 3.0 installation file on mine and I found out MORE THAN 2 files
   that was not able to be installed.
 *  [cosmodaddy](https://wordpress.org/support/users/cosmodaddy/)
 * (@cosmodaddy)
 * [15 years, 9 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/#post-1525412)
 * How do you get back to 2.9.2? 3.0 is just awful for me…

Viewing 11 replies - 1 through 11 (of 11 total)

The topic ‘WordPress 3.0 Install Problems’ is closed to new replies.

## Tags

 * [3.0](https://wordpress.org/support/topic-tag/3-0/)

 * In: [Installing WordPress](https://wordpress.org/support/forum/installation/)
 * 11 replies
 * 8 participants
 * Last reply from: [cosmodaddy](https://wordpress.org/support/users/cosmodaddy/)
 * Last activity: [15 years, 9 months ago](https://wordpress.org/support/topic/wordpress-30-install-problems/#post-1525412)
 * Status: not resolved

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