Memory exhausted error in admin panel after upgrade to 2.8

I have the same error message (after upgrading to 2.8) dependig on how many plugins I activate in different places in the dashboard.

For example in “Newest Draft”:
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 10920 bytes) in C:\xampp\htdocs\websites\abzwordpress\wp-includes\query.php on line 2512

It seems to change with the number of plugins I activate.

Same poblem here.
This is the message:

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 2348617 bytes) in /home4/guardib6/public_html/wp-includes/http.php on line 1033

Follow the instructions here I had exactly the same problem as you guys and this sorted it out. I increased memory to 128M in the steps outlined at this link.

To add to this.there is already a php.ini in wp-includes. simply open it and look for the memory reference and change it to the size you want

To add to this.there is already a php.ini in wp-includes

That php.ini would have been put there by you or your host.

exactly the same problem !
after upgrading 2.8:
in the the Incoming Links :

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 368640 bytes) in /mnt/110/sdb/1/d/jef/wordpress/wp-includes/class-simplepie.php on line 9575

And the RSS don’t work now!

the same problem here, but the error in “plugin” widget?!

Following the link posted by andrewtrench I added this line to my wp-includes/cache.php file (right after the <?php tag: )

ini_set(‘memory_limit’,’64M’); // set memory to prevent fatal errors

Why 64MB? Well if you look at your error you will get a memory size in bytes. The 33554432 in the error told me 32MB was not enough so I bumped it up to 64 and my errors in the dashboard went away. I did not have to do the other two steps.

You could also add this line to your wp-config.php

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

This way you won’t have to constantly make the fix again whenever you upgrade WordPress.

Good to know gestroud!

Download Monitor was causing this error for me. Deleting it fixed it (though it also destroyed all downloads on the site…)

[Plugin: WordPress Download Monitor] Breaks WP 2.8

@gestroud

Thanks – it seems your tip defining more memory in the wp-config.php solved the problem in my installation.

@gestroud: great tip!
Thanks a lot ??

I tried all of the options mentioned above, but it solves nothing for me. ??

@nienonline – assuming you’ve deactivated all plugins, the try one of these methods for increasing the amount of memory a PHP script may consume

1. If you have access to your PHP.ini file, change the line in PHP.ini
If your line shows 32M try 64M:
memory_limit = 64M ; Maximum amount of memory a script may consume (64MB)

2. If you don’t have access to PHP.ini try adding this to an .htaccess file:
php_value memory_limit 64M

3. Try adding this line to your wp-config.php file:
Increasing memory allocated to PHP
define('WP_MEMORY_LIMIT', '64M');

4. Talk to your host.

Related:
How to deactivate all plugins when not able to access the administrative menus?