private function findPaths()
    {
        $configFilename = $this->projectPath . DIRECTORY_SEPARATOR . $this->configFile;
        $handle         = fopen($configFilename, 'r');
        if (false === $handle) {
            throw new \FileNotFoundException($configFilename . ' could not be found');
        }
        $contents = fread($handle, filesize($configFilename));
        foreach (explode(PHP_EOL, $contents) as $line) {
            if (preg_match('/sass_dir ?= ?"(.*)"/', $line, $matches) !== 0) {
                $this->sassPath = $this->projectPath . DIRECTORY_SEPARATOR . $matches[1];
            }
            if (preg_match('/css_dir ?= ?"(.*)"/', $line, $matches) !== 0) {
                $this->cssPath = $this->projectPath . DIRECTORY_SEPARATOR . $matches[1];
            }
        }
    }