The rails app cannot be deployed to heroku

What do you want to do

I want to deploy the rails app to heroku

environment

Ruby 2.4.0
Ruby on Rails 5.1.6
bundler 2.0.1
Javascript runtime:node.js

Ruby 2.4.0

Ruby on Rails 5.1.6

bundleer 2.0.1

Javascript runtime:node.js

Current State

In the vagrant environment, we check the rails server startup and browser display.

Problems and error messages

Git push heroku master will fail deployment
heroku buildpack will be set to node.js

2019-10-03T21:33:48.503244 + 00:00 heroku [web.1]: Starting process with command `bundle exec rails server-p28886`
2019-10-03T21:33:50.666191 + 00:00 heroku [web.1]: Process expired with status1
2019-10-03 T21:33:50.708819 + 00:00 heroku [web.1]: State changed from starting to crash
2019-10-03 T21:33:50.712474 + 00:00 heroku [web.1]: State changed from crashed to starting
2019-10-03T21:33:50.586012+00:00 app [web.1]: /usr/lib/ruby/2.5.0/rubygems.rb:289: in `find_spec_for_exe': Could not find 'bundler' (2.0.1) required by your/app/Gemfile.lock.(Gem:GemNotFoundException)
2019-10-03T21:33:50.586039 + 00:00 app [web.1]: To update to the last version installed on your system, run `bundle update --bundler`.
2019-10-03 T21:33:50.586041 + 00:00 app [web.1]: To install the missing version, run`gem install bundle: 2.0.1`
2019-10-03T21:33:50.586047 + 00:00 app [web.1]: from /usr/lib/ruby/2.5.0/rubygems.rb:263:in`bin_path'
2019-10-03T21:33:50.586049 + 00:00 app [web.1]:from/app/bin/bundle:3:in`<main>'

remote:----->App not compatible with buildpack:https://github.com/heroku/heroku-buildpack-ruby.git
remote —More info: https://devcenter.heroku.com/articles/buildpacks#detection-failure
remote:
remote: ! Push failed
remote —Verifying deploy...
remote:
remote: !Push rejected to your-appname