Daily Tip: Fatal Error Exhausted Memory Size When Upgrading to WordPress 3.0? Here’s the Fix.

June 19, 2010  | 
7 Comments

This is a common problem among WordPress users upgrading to 3.0 since the package size is bigger than previous versions. You may see something like this:

Fatal error: Allowed memory size of 33554432 bytes exhausted

Solution: Increase Memory Limit:

One way to do this is to add this line to your wp-config.php file:

define('WP_MEMORY_LIMIT', '64M');

Another solution that some may be more comfortable with is to install a plugin to help you increase the memory limit. Check out Memory Limit. You can install and activate it for your upgrade. Then you can deactivate it afterwards if you want to.

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7 Responses to Daily Tip: Fatal Error Exhausted Memory Size When Upgrading to WordPress 3.0? Here’s the Fix.

  1. Thanks for a nice tip. I tried to use the Memory Bump plugin, but it caused errors, so I deleted it. The line in wp-config -file did the trick.

  2. Pingback: WordPress 3.0 Resources

  3. Thanks for a nice tip. i will try

  4. Neither way works, any other tips?

    Keeps getting stuck on “Download from…”

  5. I had wp 2.9.2 set to use 50 mb.

    after updating to 3.0, my memory has changed to use 256mb.

    I cant seem to change it back?

    any advice on how?

  6. Pingback: L’hebdo WordPress : Mise à jour – menus – thèmes | WordPress Francophone

  7. Sometimes this way doesn’t works, so there is another way is to add line
    php_value memory_limit 64M
    to .htaccess In my case that was effective.

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