std::ifstream >> json error

[finnwrt]

• What is the issue you have?
  I'm trying to open a file and put the contents in a json object

• Please describe the steps to reproduce the issue. Can you provide a small but working code example?

#include <fstream>
#include "json.hpp"
using json = nlohmann::json;

void foo() {
     std::ifstream i("file.txt");
     json j;
     i >> j;
}

• And what is the actual behavior instead?
  Error: C++ no operator matches these operands operand types are: std::ifstream >> json

• Which compiler and operating system are you using? Is it a supported compiler?
  Windows 10, VS2019

• Did you use a released version of the library or the version from the develop branch?
  Latest release of json.hpp