Heroku Removing Gemfile.lock because it was generated on Windows

Question

Does anyone have any idea about this one? Trying to deploy to heroku. I am able to do a successful launch to heroku but I suspect this warning is probably the reason I get t

Answer 1

your Gemfile.lock file likely contains

PLATFORMS
  ruby
  x86-mingw32

You need to remove

  x86-mingw32

for it to play nicely with heroku. There may be lines in your Gemfile.lock that conflict with removing that, e.g. you might have installed a separate version of the mysql2 gem for windows.

mysql2 (0.3.11-x86-mingw32)
mysql2 (0.3.14)

you will likely need to remove the line that references the windows-only version of the gem. And for that to work, you may need to remove the line in your Gemfile that causes bundler to install that gem.