未初始化的常量ActionView :: Helpers :: InstanceTag（NameError） - jquery_datepicker gem error [英] Uninitialized constant ActionView::Helpers::InstanceTag (NameError) - jquery_datepicker gem error

问题描述

 < div> 
 
 <％= f.datepicker'date'％>< / div> 
< div><％= f.datetime_picker'date'，：dateFormat => yy-mm-dd％>< / div> 
  

和这一个

 < h5>< i class =fa fa-calendar-o>< / i><％= datepicker_inputevent，date％>< / h5> 
  

当我重置服务器时，我收到以下错误（并且服务器未启动现在）：

blockquote
usr / local / rvm / gems / ruby​​-2.0.0-p247 / gems / jquery_datepicker-0.4 / lib / app /helpers/form_helper.rb:33:in`：未初始化的常量ActionView :: Helpers :: InstanceTag（NameError）

完整的错误

https://gist.github.com/ naushadparpia / 7819419

解决方案

您是使用rails 4还是rails 3？你有两个标签。看起来你使用的是rails 4，ActionView :: Helpers :: InstanceTag来自Rails 3，而不是Rails 4.查看jquery-datepicker gem github页面，它看起来像是gem不是rails 4兼容。

有人试图修复它，使其工作在Rails 4 此处。祝你好运！

Just installed the jquery-datepicker gem and have used a few of the helpers in the view:

<div><%= f.datepicker 'date' %></div>
<div><%= f.datetime_picker 'date', :dateFormat => "yy-mm-dd" %></div>   

and this one

<h5><i class="fa fa-calendar-o"></i><%= datepicker_input "event","date" %></h5>

and when I reset the server I'm getting the following error (and the server isn't starting now):

usr/local/rvm/gems/ruby-2.0.0-p247/gems/jquery_datepicker-0.4/lib/app/helpers/form_helper.rb:33:in `': uninitialized constant ActionView::Helpers::InstanceTag (NameError)

Full error

https://gist.github.com/naushadparpia/7819419

解决方案

Are you using rails 4 or rails 3? You have tags for both. It would seem you are using rails 4, ActionView::Helpers::InstanceTag is from Rails 3 and is not in Rails 4. Looking at the jquery-datepicker gem github page, it looks like that gem is not rails 4 compatible.

Somebody tried to fix it to make it work in Rails 4 here. Good luck!

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