kotlin com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: 预期为 BEGIN_OBJECT 但在第 1 行第 2 列路径 $ 处为 BEGIN_ARRAY

我试图在 Kotlin 中使用 OKHttp 解析 JSON 字符串，但它给了我以下错误并且应用程序崩溃了：

2019 年 9 月 30 日 15：27：24.871 4808-4933/com.kabelash.kotlinrepo E/AndroidRuntime：致命异常：OkHttp 调度程序进程：com.kabelash.kotlinrepo，PID：4808 com.google.gyntaxException：java .IllegalStateException：预期为 BEGIN_OBJECT，但在第 1 行第 2 列路径 $ 处为 BEGIN_ARRAY，位于 com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:226)

我的主活动.kt

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        recyclerView_main.layoutManager = LinearLayoutManager(this);

        fetchJson()

    }

    fun fetchJson() {
        val url = "https://api.myurl.com/"

        val request = Request.Builder().url(url).build()
        val client = OkHttpClient()
        client.newCall(request).enqueue(object: Callback{
            override fun onResponse(call: Call, response: Response) {
                val body = response.body?.string()
                println(body)

                val gson = GsonBuilder().create()

                val feed = gson.fromJson(body, Feed::class.java)

                runOnUiThread {
                    recyclerView_main.adapter = MainAdapter(feed)
                }
            }

            override fun onFailure(call: Call, e: IOException) {
                println("Request Failed")
            }
        })
    }
}

class Feed (val name: String, val created_at: String, val owner: Owner)

class Owner (val login: String, val avatar_url: String)

我的 MainAdapter.kt

class MainAdapter(val feed: Feed): RecyclerView.Adapter<CustomViewHolder>(){

    override fun getItemCount(): Int {
        return feed.name.count()
    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CustomViewHolder {
        val layoutInflater = LayoutInflater.from(parent.context)
        val rowCell = layoutInflater.inflate(R.layout.repo_row, parent, false)
        return CustomViewHolder(rowCell)
    }

    override fun onBindViewHolder(holder: CustomViewHolder, position: Int) {
        val fd = feed.name.get(position)
        holder.view.titleText.text = fd.toString()
    }

}

class CustomViewHolder(val view: View): RecyclerView.ViewHolder(view) {
}

我花了很多时间在里面，但我仍然无法弄清楚。我该如何解决？有什么建议么？