没有隐式转换nil成String [英] no implicit conversion of nil into String

问题描述

目前我想在Ruby on Rails中设置一个简单的应用程序。我已迁移数据库，播种它，现在卡住了以下错误。

currently I'm trying to set up a simple app in Ruby on Rails. I've migrated the db, seeded it and am now stuck at the following error.

no implicit conversion of nil into String

Extracted source (around line #4):

1: <!--[if lt IE 9]>
2: <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
3: <![endif]-->
4: <%= stylesheet_link_tag 'blueprint/screen', :media => 'screen' %>
5: <%= stylesheet_link_tag 'blueprint/print',  :media => 'print' %>
6: <%= stylesheet_link_tag 'custom', :media => 'screen' %>

看起来资产标签助手不能正常工作或返回nil（如果可能的话）？

It seems like the asset tags helpers are not working properly or returning nil (if that's even possible)?

推荐答案

我通过将以下行添加到我的application.rb来修复此错误：

I hotfixed this error by adding the following line to my application.rb:

ActionController::Base.config.relative_url_root = ''

$ b b

错误很可能是由于我的rails版本是3.0.12的错误。

The error is most likely due to a bug in my rails version which is 3.0.12.

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