title: Get a file base64 from the URI
body: <p>i have been trying to get the base64 of a file. however i could not use the plugin for some reason.</p>
  
  <pre><code>window.resolveLocalFileSystemUrl(path, gotFile, fail);
  </code></pre>
  
  <p>This above code gives me a:</p>
  
  <p>"Property 'resolveLocalFileSystemUrl' does not exist on type 'Window'."</p>
  
  <p>error.</p>
  
  <p>Is there any way to fix it? i have the plugin installed. Also, i have tried(from other stackoverflow answers) </p>
  
  <pre><code>window.resolveLocalFileSystemUri(path, gotFile, fail);
  window.resolveLocalFileSystemURL(path, gotFile, fail);
  window.resolveLocalFileSystemURI(path, gotFile, fail);
  </code></pre>
  
  <p>OR if there is another way to retrieve the base64, please assist.</p>
  
  <p>By the way, im using filechoose to open and choose the file.</p>