Ruby 修复无法读取的重影脚本字体

我正在使用ruby Scruffy gem创建一些图形。它依赖RMagick渲染文本并创建PNG。当我运行ruby脚本时，我得到了这个错误

sh: gs: command not found
sh: gs: command not found
/Users/natebird/.rvm/gems/ree-1.8.7-2011.03/gems/scruffy-0.2.6/lib/scruffy/rasterizers/rmagick_rasterizer.rb:15:in `from_blob': unable to read font `/usr/local/share/ghostscript/fonts/n019003l.pfb' @ error/annotate.c/RenderFreetype/1128: `(null)' (Magick::ImageMagickError)
    from /Users/natebird/.rvm/gems/ree-1.8.7-2011.03/gems/scruffy-0.2.6/lib/scruffy/rasterizers/rmagick_rasterizer.rb:15:in `rasterize'
    from /Users/natebird/.rvm/gems/ree-1.8.7-2011.03/gems/scruffy-0.2.6/lib/scruffy/graph.rb:164:in `render'
    from autobench_grapher.rb:61:in `generate_graph'
    from autobench_grapher.rb:30:in `run'
    from autobench_grapher.rb:15:in `run'
    from autobench_grapher.rb:91

---

您需要安装ghostscript（请参阅：

gs:command not found

）。如何做到这一点取决于您所处的平台。

是的。与brew安装ghostscript一样简单。谢谢