{"image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Furaway.hatenablog.com%2Fentry%2F2016%2F09%2F23%2F114238\" title=\"&quot;KeyError: key not found&quot; - \u6587\u7cfb\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://uraway.hatenablog.com/","blog_title":"\u6587\u7cfb\u30d7\u30ed\u30b0\u30e9\u30de\u30fc","categories":["\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af"],"provider_url":"https://hatena.blog","title":"\"KeyError: key not found\"","author_name":"uraway","description":"\u554f\u984c Rails\u306b\u3066\u3001\u65b0\u305f\u306b\u8a2d\u5b9a\u3057\u305f\u74b0\u5883\u5909\u6570\u304c\u6a5f\u80fd\u3057\u306a\u3044: myproject/config/initializers/constants.rb:13:in `fetch': key not found: \"CONSTANT\" (KeyError) \u539f\u56e0 Rails\u306ePreloader\u3067\u3042\u308bspring\u3092\u5165\u308c\u3066\u3044\u305f\u305f\u3081\u3001\u74b0\u5883\u5909\u6570\u304c\u66f4\u65b0\u3055\u308c\u3066\u3044\u306a\u304b\u3063\u305f\u3002 \u89e3\u6c7a\u6cd5 $ ./bin/spring stop","width":"100%","published":"2016-09-23 11:42:38","url":"https://uraway.hatenablog.com/entry/2016/09/23/114238","type":"rich","height":"190","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/uraway/","version":"1.0"}