{"provider_name":"Hatena Blog","published":"2011-09-19 17:10:37","url":"https://hideack.hatenablog.com/entry/20110919/1316419837","categories":["\u30e1\u30e2"],"author_url":"https://blog.hatena.ne.jp/hideack/","type":"rich","image_url":null,"author_name":"hideack","height":"190","blog_url":"https://hideack.hatenablog.com/","provider_url":"https://hatena.blog","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhideack.hatenablog.com%2Fentry%2F20110919%2F1316419837\" title=\"gem\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u884c\u304a\u3046\u3068\u3057\u305f\u3068\u304d\u306b no such file to load -- mkmf (LoadError) - \u30c6\u30ce\u30cb\u30c3\u30ad (@hideack &#39;s diary)\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"gem\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u3057\u3088\u3046\u3068\u3057\u305f\u3068\u304d\u306b\u4ee5\u4e0b\u306e\u69d8\u306a\u30a8\u30e9\u30fc\u304c\u51fa\u308b\u3053\u3068\u304c\u3042\u3063\u305f\u3002 $ sudo gem install mongo_mapper Building native extensions. This could take a while... ERROR: Error installing mongo_mapper: ERROR: Failed to build gem native extension./usr/bin/ruby1.8 extconf.rb extconf.rb:36:in `require': no such file to load -- mkmf (LoadEr\u2026","title":"gem\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u884c\u304a\u3046\u3068\u3057\u305f\u3068\u304d\u306b no such file to load -- mkmf (LoadError)","blog_title":"\u30c6\u30ce\u30cb\u30c3\u30ad (@hideack 's diary)","width":"100%"}