gem-install-json--platform=ruby失败的windows7 64位

Question

我正在按照DevKit安装json-gem。然而，它对我不起作用。这一直阻止我做bundle install。计算机是Win 7 64位。已传递用于ruby dk.rb init和ruby dk.rb install的命令。

ruby 2.1.8p440 (2015-12-16 revision 53160) [x64-mingw32]
Rails 4.2.6

错误

>gem install json --platform=ruby
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
The system cannot find the path specified.
ERROR:  Error installing json:
        ERROR: Failed to build gem native extension.
    current directory: C:/ruby/lib/ruby/gems/2.1.0/gems/json-1.8.3/ext/json/ext/
generator
C:/ruby/bin/ruby.exe -r ./siteconf20160413-5616-jod3h4.rb extconf.rb
creating Makefile
extconf failed, exit code 1
Gem files will remain installed in C:/ruby/lib/ruby/gems/2.1.0/gems/json-1.8.3 f
or inspection.
Results logged to C:/ruby/lib/ruby/gems/2.1.0/extensions/x64-mingw32/2.1.0/json-
1.8.3/gem_make.out

Answer 1

在执行ruby dk.rb init后，检查您是否在文件中获得了正确的ruby版本，如果没有在程序文件中指定正确的ruby版本，则尝试运行ruby dk.rb install，完成后安装devkit，即可安装所需的gem。