title: fopen returns No such file or directory, file exists
body: <p>Here is the code:</p>
  
  <pre><code>FILE* json = fopen("D:\\platformer\\resources\\maps\\test.json", "r");
  if (json == 0)
  {
      // No such file or directory
      String aa = strerror(errno);
  }
  </code></pre>
  
  <p>It always returns <code>No such file or directory</code>, but it exists:</p>
  
  <p><img src="https://i.stack.imgur.com/Rw7al.png" alt="enter image description here"></p>