在Windows 8.1上安装json时出错

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我已经在 windows 8.1上安装了 rails 4.2.3 和 ruby​​ 2.2.2p95 x64 。当我尝试运行捆绑安装时，由于 json -v 1.8.3 ，安装失败。我已经安装了 json版本1.8.1 。当我运行rubygems update命令时，它不会被更新。如果我尝试单独运行 gem install json -v 1.8.3 或 gem install json --platform = ruby​​ --version = 1.8.3 我得到以下错误。

I have installed rails 4.2.3 and ruby 2.2.2p95 on windows 8.1 x64 . When I try to run "bundle install" the installation fails because of json -v 1.8.3. I already have json version 1.8.1 installed. When I run rubygems update command it does not get updated. If I try to individually run gem install json -v 1.8.3 or gem install json --platform=ruby --version=1.8.3 I get the following error.

ERROR: While executing gem ... (OptionParser::InvalidArgument) invalid argument: -platform=ruby C:\>gem install json --platform=ruby --version=1.8.3 Building native extensions. This could take a while... ERROR: Error installing json: ERROR: Failed to build gem native extension. C:/Ruby22-x64/bin/ruby.exe -r ./siteconf20150719-4308-1m86usl.rb extconf.rb creating Makefile make "DESTDIR=" clean make "DESTDIR=" generating generator-x64-mingw32.def compiling generator.c make: x86_64-w64-mingw32-gcc: Command not found make: *** [generator.o] Error 127 make failed, exit code 2 Gem files will remain installed in C:/Ruby22- x64/lib/ruby/gems/2.2.0/gems/json-1 .8.3 for inspection. Results logged to C:/Ruby22-x64/lib/ruby/gems/2.2.0/extensions/x64-mingw32/2.2.0 /json-1.8.3/gem_make.out

推荐答案

试试这个 gem install --verbose json -v 1.8.3 。这应该安装宝石。

Try this gem install --verbose json -v 1.8.3. This should install the gem.