Doctrine\Search\Mapping\MappingException::mappingFileNotFound PHP Method

    public static function mappingFileNotFound($entityName)
    {
        return new self("No class or parent mapping file found for class '{$entityName}'.");
    }

 /**
  * {@inheritDoc}
  */
 public function loadMetadataForClass($className, ClassMetadata $metadata)
 {
     /* @var $metadata \Doctrine\Search\Mapping\ClassMetadata */
     $hierarchy = array_merge(array($className), class_parents($className));
     // Look for mappings in the class heirarchy and merge
     $element = array();
     foreach (array_reverse($hierarchy) as $subClassName) {
         try {
             $element = array_merge($element, $this->getElement($subClassName));
         } catch (CommonMappingException $e) {
         }
     }
     if (empty($element)) {
         throw MappingException::mappingFileNotFound($className);
     }
     $this->annotateClassMetadata($element, $metadata);
     // Evaluate root mappings
     if (isset($element['root'])) {
         foreach ($element['root'] as $rootMapping) {
             $metadata->mapRoot($this->rootToArray($rootMapping));
         }
     }
     // Evaluate id
     if (isset($element['id'])) {
         $metadata->identifier = $element['id'];
     }
     // Evaluate field mappings
     if (isset($element['fields'])) {
         foreach ($element['fields'] as $name => $fieldMapping) {
             $mapping = $this->fieldToArray($name, $fieldMapping);
             $metadata->mapField($mapping);
         }
     }
     // Evaluate parameter mappings
     if (isset($element['parameters'])) {
         foreach ($element['parameters'] as $name => $parameterMapping) {
             $mapping = $this->parameterToArray($name, $parameterMapping);
             $metadata->mapParameter($mapping);
         }
     }
 }