我正在尝试从android studio textview php数据库中获取数据库连接的值。我正在使用改装库。下面是我为获取值而编写的代码。。。我得到这个错误“使用jsonreader.setlenient（true）在第1行第1列路径$接受格式错误的json”

public class MainActivity extends AppCompatActivity {
TextView nametxt, agetxt, phonetxt, emailtxt;
Button retrieveBtn;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    nametxt = (TextView) findViewById(R.id.nametxt);
    agetxt = (TextView) findViewById(R.id.agetxt);
    phonetxt = (TextView) findViewById(R.id.phonetxt);
    emailtxt = (TextView) findViewById(R.id.emailtxt);
    retrieveBtn = (Button) findViewById(R.id.retrieveBtn);
    retrieveBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            fetchData();
        }
    });}

private void fetchData() {
    Gson gson = new GsonBuilder()
            .setLenient()
            .create();

    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl("http://10.0.2.2:8080/demo/")
            .addConverterFactory(GsonConverterFactory.create())
            .build();
   Api api = retrofit.create(Api.class);

    Call<List<Details_Pojo>> call = api.getstatus();

    call.enqueue(new Callback<List<Details_Pojo>>() {
        @Override
        public void onResponse(Call<List<Details_Pojo>> call, Response<List<Details_Pojo>> response) {

            List<Details_Pojo> adslist = response.body();

            String name = adslist.get(0).getName();
            String age = adslist.get(0).getAge();
            String phone = adslist.get(0).getPhone();
            String email = adslist.get(0).getEmail();

            nametxt.setText(name);
            agetxt.setText(age);
            phonetxt.setText(phone);
            emailtxt.setText(email);

        }

        @Override
        public void onFailure(Call<List<Details_Pojo>> call, Throwable t) {

            Toast.makeText(MainActivity.this, ""+t.getMessage().toString(), Toast.LENGTH_LONG).show();

        }
    });
}}

我已经创建了api.java接口文件
公共接口api{

String BASE_URL = "http://10.0.2.2:8080/demo/";
 @GET("fetch_data.php")
Call<List<Details_Pojo>> getstatus();

}