public function createFromFile($configFile)
 {
     $configPath = PathFactory::instance()->create($configFile);
     $loadConfigFile = $configPath->normalize();
     if (file_exists($loadConfigFile) === false) {
         throw new ConfigFileNotFoundException($loadConfigFile);
     }
     $configDirectory = $configPath->parent();
     $configValues = Toml::parse($loadConfigFile);
     $result = $this->flattener->flatten($configValues);
     foreach ($result as $key => $fixturePath) {
         $fixtureRelativePath = RelativePath::fromString($fixturePath);
         $fixturePath = $configDirectory->join($fixtureRelativePath);
         $result[$key] = (string) $fixturePath->normalize();
     }
     return new FixtureContainer($result);
 }