Title: Fatal Error – Call to undefined function setup_userdata() Last modified: August 20, 2016 --- # Fatal Error – Call to undefined function setup_userdata() * [akmporter](https://wordpress.org/support/users/akmporter/) * (@akmporter) * [14 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-setup_userdata/) * I am trying to install WordPress. Actually I had attempted WordPress a year ago and I believe it was successful but did not end up using it. So now I am trying again installing from the beginning with the most recent version. I am trying to install it in a blog folder (domainname.com/blog). First I deleted ALL files that were previously installed. I deleted and recreated my MySQL database as well as the username. I have downloaded WP 3.1.3, unzipped, edited the needed files with my database information and uploaded to my blog folder. I try to access teh install.php and I get the following error: * **Fatal error**: Call to undefined function setup_userdata() in C:…\**pluggable. php** on line 35 * I have downloaded another new copy of 3.1.3 and tried again. Same error. Am I doing something wrong in trying to reinstall once I had an older version installed? Is there something else that I need to remove in order to install from the beginning? Viewing 4 replies - 1 through 4 (of 4 total) * Moderator [t-p](https://wordpress.org/support/users/t-p/) * (@t-p) * [14 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-setup_userdata/#post-2146805) * > Am I doing something wrong in trying to reinstall once I had an older version > installed * Which version are you trying to update? * Thread Starter [akmporter](https://wordpress.org/support/users/akmporter/) * (@akmporter) * [14 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-setup_userdata/#post-2146863) * > Which version are you trying to update? * I did have version 2.9.2 installed a year ago but never used it. Now I am ready to use it and decided to start over with the newest version. I wanted to do a clean install again rather than try to update. So I deleted all files and database, copied WP 3.1.3, unzipped, edited files, copied to website directory and attempted to access wp-admin/install.php to finish the install. Then I receive the above error. * Moderator [t-p](https://wordpress.org/support/users/t-p/) * (@t-p) * [14 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-setup_userdata/#post-2146868) * have you tried contacting your hosting provider if the if they have any problem at their end, if there are any limitations/restrictions … * Thread Starter [akmporter](https://wordpress.org/support/users/akmporter/) * (@akmporter) * [14 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-setup_userdata/#post-2146870) * Yes but they were of no help. 🙁 I’m thinking of switching hosting companies. Now may be a good time. * Let me ask this… * It occurred to me last night that we have two separate domain names. Domain # 1 is the one I am trying to install 3.1.3 and having errors. Domain #2 we don’t really use but I also installed wordpress 2.9.2 a year ago. We have two separate databases and usernames set up for these 2 domains – trying to keep them separate. Could an issue be caused by still having 2.9.2 on Domain #2 and trying to install 3.1.3 on Domain#1? Viewing 4 replies - 1 through 4 (of 4 total) The topic ‘Fatal Error – Call to undefined function setup_userdata()’ is closed to new replies. ## Tags * [fatal error](https://wordpress.org/support/topic-tag/fatal-error/) * [pluggable.php](https://wordpress.org/support/topic-tag/pluggable-php/) * [undefined function](https://wordpress.org/support/topic-tag/undefined-function/) * In: [Installing WordPress](https://wordpress.org/support/forum/installation/) * 4 replies * 2 participants * Last reply from: [akmporter](https://wordpress.org/support/users/akmporter/) * Last activity: [14 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-setup_userdata/#post-2146870) * Status: not resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics