AppwriteException: Missing required parameter: "fileId"

        return this.storage.getFilePreview(
            conf.appwriteBucketId,
            fileId
        )
    }```

**Not working in my post form**
```        {post && (
          <div className='w-full mb-4'>
            <img 
            src={appwriteService.getFilePreview(post.blogImage)}
            alt={post.title} 
            className='rounded-lg'
            />
          </div>
        )}```

**Not working in my Home page**
```            <div>
                {!blogImage? null: <div>
                    <img src={appwriteService.getFilePreview(blogImage)} alt={title}/>
                </div> }
                <div'>
                    <div>{title}</div>
                </div>
            </div>```
**Not working in my blog page**(When I visit blog page it says missing parameter 'fileId')
```<img
            src={appwriteService.getFilePreview(post.blogImage)}
            alt={post.title}
            className='rounded-xl'
          />```

        try {
          const file = await appwriteService.uploadFile(data.image[0]);     
          if (file) {
              const fileId = file.$id
              data.blogImage = fileId
              console.log(`blogImage`, fileId)
              const dbPost = await appwriteService.createPost({
                ...data,
                userId: userData.$id})

              if (dbPost) {
                navigate('/profile')
              }
          }
        } catch (error) {
          console.log(`ERROR POSTING `, error)
        }
      
      }```