Heroku push rejected, failed to install gems via Bundler

I have same issue: remote: ! Failed to install gems via Bundler.

if you see the problem is this:

remote:  Your bundle only supports platforms ["x86_64-darwin-16"] but your local platform
remote:  is x86_64-linux. Add the current platform to the lockfile with `bundle  loc
remote:  --add-platform x86_64-linux` and try again.

its mean this :

Your bundle only supports platforms ["x86_64-darwin-16"] but your local platform is x86_64-linux. Add the current platform to the lockfile with `bundle loc --add-platform x86_64-linux` and try again.

If you see in your gemfile.loc you only have this :

PLATFORMS
  x86_64-darwin-16

So I did this command, To add in your platform in gemfile.loc

bundle lock --add-platform x86_64-linux

This will update your Gemfile.loc :

PLATFORMS
  x86_64-darwin-16
  x86_64-linux

Continue :

git add .
git commit -m "add platform x86_64-linux"

Push again

git push heroku master:main

Solve!