What could be the reason for the /usr/bin/env: ruby2.2: No such file or directory” error when deploying to Heroku?

Question

Ruby on Rails

Greetings!
I understand the tutorial on rails.
Under vagrant, ubuntu server with ruby ​​2.2.0 works. I deployed to Heroku, but the application did not work on it. I found an error in the logs /usr/bin/env: ruby2.2: No such file or directory.
Done rake rails:update:binand fixed a few bugs.
I tried to execute the command heroku run rails db:migrate- it gives the same error.
What could be? Maybe someone has already encountered this?

Answer 1

mb worth some rvm?

Answer 2

Try in the files bin/rails , bin/bundle , bin/rake replace the first line with
and add the Ruby version to the Gemfile
ruby '2.2'