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 红宝石：2.5.8

我从https://gitlab.freedesktop.org/xdg/shared-mime-info/下载了软件包，然后将环境变量 (Windows) FREEDESKTOP_MIME_TYPES_PATH设置为该路径 (“c:....\data\freedesktop.org. xml.in")

我还安装了 mime-types-data > gem install mime-types-data

起初，关闭并再次打开终端后它不起作用。

提示：如果你使用vscode，则需要重新打开vscode

• 苹果

如果您使用的是 macOS，请尝试以下操作

brew install shared-mime-info

bundle update mimemagic

Answer 2

Windows 10 ruby​​ 2.6.2 安装导轨 6.0.0.rc1

1. 从https://gitlab.freedesktop.org/xdg/shared-mime-info/uploads/0440063a2e6823a4b1a6fb2f2af8350f/shared-mime-info-2.0.tar.xz下载 shared-mime-info
2. 使用 7Zip 或 WinRAR 解压缩下载的包。
3. 将它放在您选择的位置，例如“C:\package”。
4. 设置一个名为FREEDESKTOP_MIME_TYPES_PATH的新环境变量并将值浏览到该位置，例如 C:\shared-mime-info 2.0\data\freedesktop.org.xml.in
5. 刷新终端或 CMD 例如命令

刷新环境

6. 最后，gem install rails -v 6.0.0.rc1

Answer 3

经过快速谷歌搜索后，这似乎是合适的：

来自MimeMagic Github 页面：

此过程也适用于 Windows 计算机。

1. 从https://packages.debian.org/sid/amd64/shared-mime-info/download下载软件包

2. 确保安装了 7-Zip 的命令行版本

3. 7z x -so shared-mime-info_2.0-1_amd64.deb data.tar | 7z e -sidata.tar "./usr/share/mime/packages/freedesktop.org.xml"

将文件 freedesktop.org.xml 放置在适当的位置，然后将环境变量 FREEDESKTOP_MIME_TYPES_PATH 设置为该路径。

完成后，gem 应该会成功安装。

请注意，gem 将取决于运行时保留在该位置的文件。