Craft\MinimeeService::ensureCacheExists PHP Method

    protected function ensureCacheExists()
    {
        if (!$this->cacheExists()) {
            if (!$this->createCache()) {
                throw new Minimee_ErrorException(Craft::t('Minimee could not write to cache ' . $this->makePathToCacheFilename() . '.'));
            }
        }
        return $this;
    }