我是一个新手,我尝试在Android Studio上运行我的项目,但在控制台中出现了一个错误,如:

  Future<String> getData() async {
http.Response response = await http.post(
Uri.encodeFull("https:.........."),
    headers: {
  "Accept" : "application/json"

}
,body: {
  "email" : "test123@gmail.com",
  "password" : "password123"
}

);

List data = JSON.decode(response.body);
print(data[0]["access_token"]);

}

ERROR:    '_InternalLinkedHashMap<String, dynamic>' is not a subtype of type 'List<dynamic>