我的 firebase RTDB android studio 应用项目不接受存储依赖项并显示错误

问：

我正在制作一个应用程序，我需要上传和使用一些图像。我正在使用 firebase raeltime 数据库，我将存储在 firebase 存储中的图像的 url 存储。为此，我有一个按钮可以从手机的外部存储中选择图像，并借助 java 代码的按钮上传。为此，我需要像Firebace（云）的存储一样访问手机的存储空间。我正在尝试添加 depandancy 以使其工作，但它显示错误。以下是依赖项实现：-

    implementation 'com.google.firebase:firebase-core:22.2.0'
    implementation 'com.google.firebase:firebase-auth:22.2.0'
    implementation 'com.google.firebase:firebase-storage:22.0.0'
    implementation 'com.google.firebase:firebase-database:22.0.0'
    implementation 'com.google.firebase:firebase-messaging:23.3.1'```

**This is how I am initialising it in my activity**:-

```import com.google.firebase.storage.StorageReference;```

then

``` private ImageView imageView;
    // Uri indicates, where the image will be picked from
    private Uri filePath;
    // request code
    private final int PICK_IMAGE_REQUEST = 22;

    // instance for firebase storage and StorageReference
    FirebaseStorage storage;
    StorageReference storageReference;```


then in onCreate :-

``` FirebaseApp.initializeApp(this);
storage = FirebaseStorage.getInstance();
        storageReference = storage.getReference();```


**BUT THE STORAGE CODES HAVE ERROR** they are all in **RED** ink and the app is not working.Any help with practical guidance is welcome.