File
 
   - drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Exception/ParameterNotFoundException.php, line 47
Class
  
  - ParameterNotFoundException 
- This exception is thrown when a non-existent parameter is used.
Namespace
  Symfony\Component\DependencyInjection\Exception
Code
public function updateRepr() {
  if (null !== $this->sourceId) {
    $this->message = sprintf('The service "%s" has a dependency on a non-existent parameter "%s".', $this->sourceId, $this->key);
  }
  elseif (null !== $this->sourceKey) {
    $this->message = sprintf('The parameter "%s" has a dependency on a non-existent parameter "%s".', $this->sourceKey, $this->key);
  }
  else {
    $this->message = sprintf('You have requested a non-existent parameter "%s".', $this->key);
  }
  if ($this->alternatives) {
    if (1 == count($this->alternatives)) {
      $this->message .= ' Did you mean this: "';
    }
    else {
      $this->message .= ' Did you mean one of these: "';
    }
    $this->message .= implode('", "', $this->alternatives) . '"?';
  }
}