MediaManager.php
public function prepare(MediaInterface $media, UploadedFile $fileInfo)
    {
        // ensure the rootDir exists
        $uploadDir = $this->getUploadRootDir();

        $fs = new Filesystem();
        if( !$fs->exists($uploadDir) ) {
            $fs->mkdir($uploadDir, 0775);
        }

        $media->setName($fileInfo->getClientOriginalName());
        // Call the name generation strategy
        $path = $this->nameGenerationStrategy->generateName($media, $fileInfo);
        $media->setPath($path);
        $media->setWebPath(join(DIRECTORY_SEPARATOR, array($this->getUploadDir(),$path)));
        $media->setAbsolutePath($this->getAbsolutePath($path));
    }
public function prepare(MediaInterface $media, UploadedFile $fileInfo)
    {
        // ensure the rootDir exists
        $uploadDir = $this->getUploadRootDir();

        $fs = new Filesystem();
        if( !$fs->exists($uploadDir) ) {
            $fs->mkdir($uploadDir, 0775);
        }

        $media->setName($fileInfo->getClientOriginalName());
        // Call the name generation strategy
        $path = $this->nameGenerationStrategy->generateName($media, $fileInfo);
        $media->setPath($path);
        $media->setWebPath(join(DIRECTORY_SEPARATOR, array($this->getUploadDir(),$path)));
        $media->setAbsolutePath($this->getAbsolutePath($path));
    }
{@inheritdoc}