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General Questions

General questions about getting started with SilverStripe that don't fit in any of the categories above.

Moderators: martimiz, Sean, biapar, Willr, Ingo, swaiba, simon_w

Error accessing Admin Panel


3 Posts   1129 Views


2 October 2010 at 7:12am (Last edited: 2 October 2010 8:59pm), Community Member, 25 Posts

Hi Guys,

I have a BIG problem with my site. The site views fine to the outside world but when I go to the admin panel I get and error page presented to me - see below error code:
[User Error] Bad class to singleton() - AccountPage
GET /admin

Line 263 in /homepages/xx/xxx/htdocs/sapphire/core/Core.php

254    if(($pos = strpos($className,'_')) !== false) $className = substr($className,0,$pos);
255    if($_CLASS_MANIFEST[$className]) return $_CLASS_MANIFEST[$className];
256 }
258 function singleton($className) {
259    static $_SINGLETONS;
260    if(!isset($className)) user_error("singleton() Called without a class", E_USER_ERROR);
261    if(!is_string($className)) user_error("singleton() passed bad class_name: " . var_export($className,true), E_USER_ERROR);
262    if(!isset($_SINGLETONS[$className])) {
263     if(!class_exists($className)) user_error("Bad class to singleton() - $className", E_USER_ERROR);
264       $_SINGLETONS[$className] = Object::strong_create($className,null, true);
265       if(!$_SINGLETONS[$className]) user_error("singleton() Unknown class '$className'", E_USER_ERROR);
266    }
267    return $_SINGLETONS[$className];
268 }

I am using version 2.3.1

Any ideas?

Thank you


2 October 2010 at 7:49pm Forum Moderator, 5511 Posts

[User Error] Bad class to singleton() - AccountPage

It means that the database or the cache is out of date. Its trying to access the AccountPage before its in the cache. Have you added any functionality recently? You might need to do a dev/build?flush=all then reload the admin.


2 October 2010 at 8:58pm Community Member, 25 Posts

Thanks Will - that fixed it. I removed an e-commerce module and forgot to do the dev/build subsequently.