ruby on rails - Strange:two same code ,one goes well ,but the other showe error, i've checked for many times -

two same coding,but 1 goes well,the other 1 doesn't work

error message

/users/kevin/rails101/app/views/groups/index.html.erb:21: syntax error, unexpected keyword_end, expecting ')' '.freeze; end ^ /users/kevin/rails101/app/views/groups/index.html.erb:26: syntax error, unexpected keyword_ensure, expecting ')' /users/kevin/rails101/app/views/groups/index.html.erb:28: syntax error, unexpected keyword_end, expecting ')'

enter image description here

here 1 showes error

<div class="col-md-12">    <div class="group">     <%= link_to("new group", new_group_path, class: "btn btn-primary pull-right") %>   </div> <table class="table table-hover">   <thead>     <tr>       <td>#</td>       <td>title</td>     <td>description</td>     </tr>   </thead>   <tbody>     <% @groups.each |group| %>     <tr>       <td>#</td>       <td><%= link_to(group.title, group_path(group)) %></td>         <td><%= group.description %> </td>       <td>         <%= link_to("edit", edit_group_path(group), class: "btn btn-sm btn-default"%>         <%= link_to("delete", group_path(group), class: "btn btn-sm btn-default",         method: :delete, data: {confirm: "are sure?"} )%>       </td>     </tr>     <% end %>   </tbody> </table> </div> 

the other 1 goes well:

<div class="col-md-12">   <div class="group">     <%= link_to("new group", new_group_path, class: "btn btn-primary pull-right") %>   </div>   <table class="table table-hover">     <thead>       <tr>         <td>#</td>         <td>title</td>         <td>description</td>       </tr>     </thead>     <tbody>       <% @groups.each |group| %>         <tr>           <td>#</td>           <td><%= link_to(group.title, group_path(group)) %></td>           <td><%= group.description %></td>           <td>               <%= link_to("edit", edit_group_path(group), class: "btn btn-sm btn-default")%>               <%= link_to("delete", group_path(group),    class: "btn btn-sm btn-default",                           method: :delete, data: { confirm: "are sure?" } )%>           </td>         </tr>       <% end %>     </tbody>   </table> </div> 

you're missing parenthesis here:

<%= link_to("edit", edit_group_path(group), class: "btn btn-sm btn-default"%> 

it should

<%= link_to("edit", edit_group_path(group), class: "btn btn-sm btn-default")%>