ruby-on-rails – Ruby gem安装问题

发布时间：2020-12-17 03:49:15 所属栏目：百科来源：网络整理

导读：我试图在 Windows上安装json如下,但它无法正常工作.请帮助我同样的可能的resoultion. C:Ruby193bingem install --local json-1.8.1.gemTemporarily enhancing PATH to include DevKit...Building native extensions. This could take a while...ERROR: Err

我试图在 Windows上安装json如下,但它无法正常工作.请帮助我同样的可能的resoultion.

C:Ruby193bin>gem install --local json-1.8.1.gem
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing json-1.8.1.gem:
        ERROR: Failed to build gem native extension.

    C:/Ruby193/bin/ruby.exe -r ./siteconf20140725-4216-11o740j.rb extconf.rb
creating Makefile

make  clean
Makefile:165: *** target pattern contains no `%'.  Stop.

make
Makefile:165: *** target pattern contains no `%'.  Stop.

make failed,exit code 2

Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/json-1.8.1 for inspection.
Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/extensions/x86-mingw32/1.9.1/json-1.8.1/gem_make.out

解决方法

RubyGems 2.4.1不会在Windows 1.9及更早版本的Windows上构建本机扩展.

您需要将RubyGems降级到1.8.29.
为此,请运行以下命令：

gem update --system 1.8.29

检查宝石版：

gem -v
1.8.29

现在再次尝试你的命令：

gem install --local json-1.8.1.gem

ref：https://groups.google.com/forum/#!topic/rubyinstaller/k19SeJijpKU/discussion

（编辑：李大同）

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