public static function unknownColumnType($name)
{
return new self('Unknown column type "' . $name . '" requested. Any Doctrine type that you use has ' . 'to be registered with \\Doctrine\\DBAL\\Types\\Type::addType(). You can get a list of all the ' . 'known types with \\Doctrine\\DBAL\\Types\\Type::getTypesMap(). If this error occurs during database ' . 'introspection then you might have forgotten to register all database types for a Doctrine Type. Use ' . 'AbstractPlatform#registerDoctrineTypeMapping() or have your custom types implement ' . 'Type#getMappedDatabaseTypes(). If the type name is empty you might ' . 'have a problem with the cache or forgot some mapping information.');
}