title: The file is not displayed in the editor because it is either binary or uses an unsupported text encoding
body: <p>Is it related or not I don't know but when I install firebase and open VS Code again, this problem appeared in package.json and package-lock.json when click to 'Open anyway' button Text-Editor this nulnulnul issue come up</p>
  <p>nul problem:<br />
  <img src="https://i.stack.imgur.com/emNga.png" alt="nul problem" /></p>
  <p>When I open package.json file with Hex Editor shown like this</p>
  <p>with hex editor:<br />
  <img src="https://i.stack.imgur.com/S2zlU.png" alt="with hex editor" /></p>
  <p>Edit:</p>
  <p>I deleted package.json files and install all packages again and it works</p>