diff --git a/Controller/SecuredController.php b/Controller/SecuredController.php
index f0c928d..2264eaa 100755
--- a/Controller/SecuredController.php
+++ b/Controller/SecuredController.php
@@ -25,6 +25,7 @@ public function loginAction(Request $request)
             $error = $request->getSession()->get(SecurityContext::AUTHENTICATION_ERROR);
         }
 
+        $error = $this->extractAuthErrorI18N($error);
 
         return $this->render('ChateaSecureBundle:Secured:login.html.twig',array(
             'last_username' => $request->getSession()->get(SecurityContext::LAST_USERNAME),
@@ -47,4 +48,19 @@ public function logoutAction()
     {
         // The security layer will intercept this request
     }
+
+    private function extractAuthErrorI18N($error)
+    {
+        $translator = $this->get('translator');
+        $translationMap = array(
+            'Bad credentials' => 'login.bad_credentials'
+        );
+        $message = $error->getMessage();
+
+        if(isset($translationMap[$message])){
+            return $translator->trans($translationMap[$message], array(), 'Login');
+        }
+
+        return $message;
+    }
 }
\ No newline at end of file
diff --git a/Resources/config/services.xml b/Resources/config/services.xml
index 6f4e511..c18b62a 100755
--- a/Resources/config/services.xml
+++ b/Resources/config/services.xml
@@ -27,6 +27,7 @@
 
         <service id="antwebs_chateasecure_user_provider" class="%antwebs_chateasecure_user_provider.class%" >
             <argument type="service" id="chat_secure.adapter" />
+            <argument type="service" id="translator" />
         </service>
 
         <service id="security.authentication_provider.antwebs_chateasecure" class="%antwebs_chateasecure_authentication_provider.class%" abstract="true" public="false">
diff --git a/Resources/translations/Login.en.yml b/Resources/translations/Login.en.yml
index 590f4b8..c7e3a44 100644
--- a/Resources/translations/Login.en.yml
+++ b/Resources/translations/Login.en.yml
@@ -1,4 +1,13 @@
 login.login: "Login"
 login.username: "Username"
 login.password: "Password"
-login.submit: "Login"
\ No newline at end of file
+login.submit: "Login"
+login.bad_credentials: "Bad credentials"
+login.service_down: 'Authentication service down'
+login.incorrect_credentialas: 'Incorrect username or password for %username%'
+login.class_not_supported: 'Instances of "%class%" are not supported.'
+login.method_not_supported: 'This method is not soported'
+login.incorrect_facebookid: 'Incorrect facebookId'
+login.facebookid_not_empty: 'The facebookId cannot be empty.'
+login.password_not_empty: 'The password cannot be empty.'
+login.username_not_empty: 'The username cannot be empty.'
\ No newline at end of file
diff --git a/Resources/translations/Login.es.yml b/Resources/translations/Login.es.yml
index 01ace25..eb95790 100644
--- a/Resources/translations/Login.es.yml
+++ b/Resources/translations/Login.es.yml
@@ -1,4 +1,6 @@
 login.login: "Autenticar"
 login.username: "Nombre de usuario"
 login.password: "Contraseña"
-login.submit: "Autenticar"
\ No newline at end of file
+login.submit: "Autenticar"
+login.bad_credentials: "Usuario o contraseña incorrecto"
+login.service_down: 'Servicio de autenticación no disponible'
\ No newline at end of file
diff --git a/Resources/views/Secured/login.html.twig b/Resources/views/Secured/login.html.twig
index 434cc4b..4319d55 100755
--- a/Resources/views/Secured/login.html.twig
+++ b/Resources/views/Secured/login.html.twig
@@ -6,7 +6,7 @@
     <h1 class="title">{{ "login.login" | trans }}</h1>
 
     {% if error %}
-        <div class="error">{{ error.message }}</div>
+        <div class="error">{{ error }}</div>
     {% endif %}
 
     <form action="{{ path("_security_check") }}" method="post" id="login">
diff --git a/Security/User/UserProvider.php b/Security/User/UserProvider.php
index 7970709..f29047a 100755
--- a/Security/User/UserProvider.php
+++ b/Security/User/UserProvider.php
@@ -9,48 +9,51 @@
 use Symfony\Component\Security\Core\Exception\UnsupportedUserException;
 use Symfony\Component\Security\Core\Exception\UsernameNotFoundException;
 use Symfony\Component\Security\Core\User\UserInterface;
+use Symfony\Component\Translation\TranslatorInterface;
 
 class UserProvider implements ChateaUserProviderInterface
 {
     private $authentication;
+    private $translator;
 
-    public function __construct(HttpAdapterInterface $authentication)
+    public function __construct(HttpAdapterInterface $authentication, TranslatorInterface $translator)
     {
         $this->authentication = $authentication;
+        $this->translator = $translator;
     }
 
     public function loadUser($username, $password)
     {
         if (empty($username)) {
-            throw new \InvalidArgumentException('The username cannot be empty.');
+            throw new \InvalidArgumentException($this->translator->trans('login.username_not_empty', array(), 'Login'));
         }
 
         if(empty($password)) {
-            throw new \InvalidArgumentException('The password cannot be empty.');
+            throw new \InvalidArgumentException($this->translator->trans('login.password_not_empty', array(), 'Login'));
         }
         try {
             $data = $this->authentication->withUserCredentials($username, $password);
             return $this->mapJsonToUser($data);
         } catch (ApiException $ae) {
-            throw new BadCredentialsException('Authentication service down');
+            throw new BadCredentialsException($this->translator->trans('login.service_down', array(), 'Login'));
         } catch (AuthenticationException $e) {
-            throw new UsernameNotFoundException(sprintf('Incorrect username or password for %s ', $username),30,$e);
+            throw new UsernameNotFoundException($this->translator->trans('login.incorrect_credentialas', array('%username%' => $username), 'Login'),30,$e);
         }
     }
 
     public function loadUserByFacebookId($facebookId)
     {
         if (empty($facebookId)) {
-            throw new \InvalidArgumentException('The facebookId cannot be empty.');
+            throw new \InvalidArgumentException($this->translator->trans('login.facebookid_not_empty', array(), 'Login'));
         }
 
         try {
             $data = $this->authentication->withFacebookId($facebookId);
             return $this->mapJsonToUser($data);
         } catch (ApiException $ae) {
-            throw new BadCredentialsException('Authentication service down');
+            throw new BadCredentialsException($this->translator->trans('login.service_down', array(), 'Login'));
         } catch (AuthenticationException $e) {
-            throw new UsernameNotFoundException('Incorrect facebookId',30,$e);
+            throw new UsernameNotFoundException($this->translator->trans('login.incorrect_facebookid', array(), 'Login'),30,$e);
         }
     }
 
@@ -71,7 +74,7 @@ public function loadUserByFacebookId($facebookId)
      */
     public function loadUserByUsername($username)
     {
-        throw new \Exception("this method is not soported");
+        throw new \Exception($this->translator->trans('login.method_not_supported', array(), 'Login'));
     }
 
 
@@ -96,7 +99,7 @@ public function refreshUser(UserInterface $user)
         if($user instanceof ApiUser){
             return $this->loadUser($user->getUsername(), $user->getPlainPassword());
         }else if (!$user instanceof User){
-            $ex = new UnsupportedUserException(sprintf('Instances of "%s" are not supported.', get_class($user)));
+            $ex = new UnsupportedUserException($this->translator->trans('login.class_not_supported', array('%class%' => get_class($user))));
             
             throw $ex;
         }
@@ -105,7 +108,7 @@ public function refreshUser(UserInterface $user)
             $refreshToken = $user->getRefreshToken();
             
             if(empty($refreshToken)){
-                throw new UsernameNotFoundException(sprintf('Incorrect username or password for %s ', $user->getUsername()),30,null);
+                throw new UsernameNotFoundException($this->translator->trans('login.incorrect_credentialas', array('%username%' => $user->getUsername())),30,null);
             }
 
             try {
@@ -114,7 +117,7 @@ public function refreshUser(UserInterface $user)
                 $user->setRefreshToken($data['refresh_token']);
                 $user->setExpiresIn($data['expires_in']);
             } catch (AuthenticationException $e) {
-                throw new UsernameNotFoundException(sprintf('Incorrect username or password for %s ', $user->getUsername()),30,$e);
+                throw new UsernameNotFoundException($this->translator->trans('login.incorrect_credentialas', array('%username%' => $user->getUsername())),30,$e);
             }
         }