Your bundle only supports platforms ["x86_64-darwin-20"] 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. [t]2021-08-23 21:48:52
Heroku でも Ruby の最新バージョン動くのね (∩´∀｀)∩ wa-i
Using Ruby version: ruby-3.0.2 Installing dependencies using bundler 2.2.21 [t]2021-08-23 21:49:39
指定しないと Ruby 2.6.6 になるみたい。
"If your Gemfile does not contain a ruby entry, you will get MRI 2.6.6."
