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/dev/build gives white page?

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3 Posts   1895 Views

Matt Villnave

Community Member, 2 Posts

6 March 2013 at 8:03am

Running 3.0.5 and when I make simple changes (add a field for example) and run /dev/build?flush=1, I get a blank screen. I'm in dev mode, no errors are kicked out. Adding a field shouldn't be so difficult! I keep experiencing this with a few of my sites and they are simple ones. See below... not sure how this can break anything! It's a fresh install.

class Page extends SiteTree {

public static $db = array(
'Right' => 'HtmlText'

public static $has_one = array(

function getCMSFields() {
$fields = parent::getCMSFields();
$fields->addFieldToTab('Root.Content.Right', new HTMLEditorField('Right'));

return $fields;

class Page_Controller extends ContentController {

* An array of actions that can be accessed via a request. Each array element should be an action name, and the
* permissions or conditions required to allow the user to access it.
* <code>
* array (
* 'action', // anyone can access this action
* 'action' => true, // same as above
* 'action' => 'ADMIN', // you must have ADMIN permissions to access this action
* 'action' => '->checkAction' // you can only access this action if $this->checkAction() returns true
* );
* </code>
* @var array
public static $allowed_actions = array (



Community Member, 141 Posts

9 March 2013 at 3:59am

Edited: 09/03/2013 4:01am

Hi Matt,

I think there is a small typo in your code:

instead of 'Right' => 'HtmlText', use 'Right' => 'HTMLText'.

Also UncleCheese made a great post about common SilverStripe errors :

(just in case you still have that "white screen of death")



Community Member, 165 Posts

11 March 2013 at 9:07am

Also Matt it is good practice to enable Director::set_environment_type('dev'); in your "mysite/_config.php" so it can give you an error. Usually a good indicator of what is wrong in your code.