How to configure BeanValidator?

Hi,

I got allways the same error:

Render queue error in BeginRender[Login:username]: Exception
constructing service 'BeanValidatorSource': Error invoking constructor
public
org.apache.tapestry5.internal.beanvalidator.BeanValidatorSourceImpl(java.util.List):
Unable to find a default provider

I found this page: BeanValidator

|@Contribute||(BeanValidatorSource.||class||)|
|public| |static| |void|
|provideBeanValidatorConfigurer(OrderedConfiguration<BeanValidatorConfigurer>
configuration)|
|{|
| ||configuration.add("MyConfigurer", ||new| |BeanValidatorConfigurer()|
| ||{|
| ||public| |void| |configure(javax.validation.Configuration<?>
configuration)|
| ||{|
| ||configuration.ignoreXmlConfiguration();|
| ||}|
| ||});|
|}

http://tapestry.apache.org/bean-validation.html

But in which file I should configure the BeanValidator?

Regards
Jeremias