title: [Trying to Deploy]: You must use Bundler 2 or greater with this lockfile
body: <p>Very new to Ruby and Ruby on Rails, so apologies in advance. I've found many similar posts to this, but the suggestions haven't worked for me so far.</p>
  
  <p>I get that the Bundler version I'm using doesn't match with the of Heroku when I try to deploy, but can't get them to match.</p>
  
  <p>I tried this and it looked like it would work, but no luck. <a href="https://stackoverflow.com/questions/53231667/you-must-use-bundler-2-or-greater-with-this-lockfile">You must use Bundler 2 or greater with this lockfile</a></p>
  
  <p>Does anyone have any ideas, or can you tell me what information you require to give some assistance?</p>
  
  <p>Many thanks!</p>