Trying to connect facebook using `HWI/OAuthBundle`, following all of the steps that say in [HWI/OauthBundle Doc](https://github.com/hwi/HWIOAuthBundle/blob/master/Resources/doc/index.md), but it return error 

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> There is no user provider for user "HWI\Bundle\OAuthBundle\Security\Core\User\OAuthUser"
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> 
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Does anyone can explain for me why this happen and how to fix this problem?