Error installing ruby on rails on windows 10

Question

I wanted to install ruby on rails for windows 10, following the same instructions of this video: https://www.youtube.com/watch?v=G-B_KUFNkQQ

When it finish the installation of ruby, I return to the console and after gem install rails, I get this error:

C:\Users\Usuario>gem install rails --no-document
Temporarily enhancing PATH for MSYS/MINGW...
Building native extensions. This could take a while...
ERROR:  Error installing rails:
        ERROR: Failed to build gem native extension.

    current directory: C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/mimemagic-0.3.9/ext/mimemagic
C:/Ruby27-x64/bin/ruby.exe -IC:/Ruby27-x64/lib/ruby/2.7.0/rubygems -rrubygems C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/rake-13.0.1/exe/rake RUBYARCHDIR\=C:/Ruby27-x64/lib/ruby/gems/2.7.0/extensions/x64-mingw32/2.7.0/mimemagic-0.3.9 RUBYLIBDIR\=C:/Ruby27-x64/lib/ruby/gems/2.7.0/extensions/x64-mingw32/2.7.0/mimemagic-0.3.9
rake aborted!
Could not find MIME type database in the following locations: ["/usr/local/share/mime/packages/freedesktop.org.xml", "/opt/homebrew/share/mime/packages/freedesktop.org.xml", "/usr/share/mime/packages/freedesktop.org.xml"]

Ensure you have either installed the shared-mime-info package for your distribution, or
obtain a version of freedesktop.org.xml and set FREEDESKTOP_MIME_TYPES_PATH to the location
of that file.

Tasks: TOP => default
(See full trace by running task with --trace)

rake failed, exit code 1

Gem files will remain installed in C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/mimemagic-0.3.9 for inspection.
Results logged to C:/Ruby27-x64/lib/ruby/gems/2.7.0/extensions/x64-mingw32/2.7.0/mimemagic-0.3.9/gem_make.out

I tried to solve making an update and "gem install mime-types-data" but stills with the same problem...

The Ruby Installer is Ruby+Devkit 2.7.2-1 (x64) and my ruby version is ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [x64-mingw32]

Answer 1

Windows 10 ruby 2.6.2 install rails 6.0.0.rc1

1. Download the shared-mime-info from https://gitlab.freedesktop.org/xdg/shared-mime-info/uploads/0440063a2e6823a4b1a6fb2f2af8350f/shared-mime-info-2.0.tar.xz
2. Extract the downloaded package with 7Zip or WinRAR.
3. Place it in a location of your choice e.g. "C:\package".
4. Set a new Environment Variable with a name: FREEDESKTOP_MIME_TYPES_PATH and browse value to the location e.g. C:\shared-mime-info 2.0\data\freedesktop.org.xml.in
5. Refresh terminal or CMD e.g. Command

refreshenv

6. And finally, gem install rails -v 6.0.0.rc1

Answer 2

• windows 10 ruby : 2.5.8

I downloaded package from https://gitlab.freedesktop.org/xdg/shared-mime-info/ and then set the environment variable (Windows) FREEDESKTOP_MIME_TYPES_PATH to that path ("c:....\data\freedesktop.org.xml.in")

also I installed mime-types-data > gem install mime-types-data

at first it didn't work after closing and opening again the terminal it did.

tip: if you use vscode you need to reopen vscode

• Mac

If you are using macOS, try the following

brew install shared-mime-info

bundle update mimemagic