Cannot add platform to Gemfile.lock using bundle lock

Question

I am trying to push a project to Heroku for the first time using git push heroku master. However, I end up getting the following error:

Your bundle only supports platforms ["arm64-darwin-21"] but your local platform is x86_64-linux. Add the current platform to the lockfile with bundle lock --add-platform x86_64-linux and try again.

Running bundle lock --add-platform x86_64-linux in turn results in the following output:

[17052, #<Thread:0x000000015307bc60 run>, #<NameError: uninitialized constant Gem::Source

... followed by a hundred lines of different paths on my computer.

Does anyone know how to interpret and solve this kind of output?

Thank you very much for your help!

Answer 1

Are you using M1 Mac? if yes then which means the platform is arm64-darwin-20, but the production environment is not.

Try to run below two commands and that will add the two platforms in Gemfile.lock

bundle lock --add-platform ruby
bundle lock --add-platform x86_64-linux

rm -rf Gemfile.lock and run bundle install