I got message this message in rails "The dependency tzinfo-data"

Question

I just install ruby on rails couple days ago and every time a create a new project in the console I got this message:

The dependency tzinfo-data (>= 0) will be unused by any of the platforms Bundler is installing for. Bundler is installing for ruby but the dependency is only for x86-mingw32, x86-mswin32, x64-mingw32, java. To add those platforms to the bundle, run `bundle lock --add-platform mingw, mswin, x64_mingw, jruby`.

but when I try to install like:

bundle lock --add-platform mingw

I got this message:

Could not locate Gemfile

Do you guys have some idea what I do bout this message???

Answer 1

This gem is unnecessary for apps that will be running on Ubuntu (or any Unix-based system) and can be safely removed from the gemfile unless your rails app is running on a Windows machine.

Per the gem's author:

If you want to get rid of the message you can do one of the following:

1. Remove the platforms option from the gem 'tzinfo-data' line in the Gemfile (and run bundle update). This will cause tzinfo to use tzinfo-data as its data source on all platforms instead of using the system time zone data.
2. Remove the gem 'tzinfo-data' line from the Gemfile. This will cause tzinfo to always try and use the system time zone data. A TZInfo::DataSourceNotFound exception will be raised if you try and run your app on Windows.
3. Run bundle lock --add-platform mingw, mswin, x64_mingw, jruby to add mingw, mswin, x64_mingw, and jruby to the list of platforms Bundler will include in the bundle.

Answer 2

Had the same problem on mac osx El capitan and this is how i solved it. FIRST this is the error message i got after running this command

$ rails new my-app -d mysql

The dependency tzinfo-data (>= 0) will be unused by any of the platforms Bundler is installing for. Bundler is installing for ruby but the dependency is only for x86-mingw32, x86-mswin32, x64-mingw32, java. To add those platforms to the bundle, run bundle lock --add-platform mingw, mswin, x64_mingw, jruby. -Note: I tried running the command while am in the application folder where i install my apps till i had to cd my-app directory(root of my app) - Fist you cd into the root directory of the app you are creating - bundle lock --add-platform mingw, mswin, x64_mingw, jruby -To install the missing dependecies. -For my case i only did this bundle lock --add-platform jruby -And it worked like a charm try that should do the trick.

Answer 3

The Could not locate Gemfile message is coming up because you're not in the project directory. cd into the project directory before running any bundle command.

• cd [path/to/your/rails/project]
• bundle lock --add-platform mingw