diff --git a/app/views/users/_user_message_course.html.erb b/app/views/users/_user_message_course.html.erb
index c8c4925fe..87d448944 100644
--- a/app/views/users/_user_message_course.html.erb
+++ b/app/views/users/_user_message_course.html.erb
@@ -7,7 +7,7 @@
             </a>
           </li>
           <li class="homepageNewsPubType fl">
-            <%=link_to ma.course_message.author.show_name, user_path(ma.course_message.author), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
+            <%=link_to ma.course_message.author.try(:show_name), user_path(ma.course_message.author), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
             <span class="<%= ma.viewed == 0 ? "homepageNewsTypeNotRead fl":"homepageNewsType fl" %>">发布了通知：</span>
           </li>
           <li class="homepageNewsContent fl">
@@ -275,7 +275,7 @@
             </a>
           </li>
           <li class="homepageNewsPubType fl">
-            <%= link_to ma.course_message.user.show_name,
+            <%= link_to ma.course_message.user.try(:show_name),
                         user_path(ma.course_message.user), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
             <span class="<%= ma.viewed == 0 ? 'homepageNewsTypeNotRead fl':'homepageNewsType fl' %>"><%= ma.apply_result == 1 ? '同意' : '拒绝'%>引用作业：</span>
           </li>
@@ -304,7 +304,7 @@
             </a>
           </li>
           <li class="homepageNewsPubType fl">
-            <%=link_to ma.course_message.user.show_name, user_path(ma.course_message.user), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
+            <%=link_to ma.course_message.user.try(:show_name), user_path(ma.course_message.user), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
             <span class="<%= ma.viewed == 0 ? "homepageNewsTypeNotRead fl":"homepageNewsType fl" %>">发布了问卷：</span>
           </li>
           <li class="homepageNewsContent fl"><a href="javascript:void(0);" class="newsGrey">
@@ -327,7 +327,7 @@
             </a>
           </li>
           <li class="homepageNewsPubType fl">
-            <%=link_to ma.course_message.author.show_name, user_path(ma.course_message.author), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
+            <%=link_to ma.course_message.author.try(:show_name), user_path(ma.course_message.author), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
             <span class="<%= ma.viewed == 0 ? "homepageNewsTypeNotRead fl":"homepageNewsType fl" %>">
             <%= ma.course_message.parent_id.nil? ? "发布了班级帖子：" : "评论了班级帖子：" %></span></li>
           <% if ma.course_message.parent_id.nil? %>
@@ -423,7 +423,7 @@
                     </a>
                   </li>
                   <li class="homepageNewsPubType fl">
-                    <%= link_to ma.course_message.user.show_name, user_path(ma.course_message.user), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
+                    <%= link_to ma.course_message.user.try(:show_name), user_path(ma.course_message.user), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
                     <span class="<%= ma.viewed == 0 ? "homepageNewsTypeNotRead fl" : "homepageNewsType fl" %>">在班级中留言了：</span>
                   </li>
                   <li class="homepageNewsContent fl"><a href="javascript:void(0);" class="newsGrey">
@@ -447,7 +447,7 @@
                     </a>
                   </li>
                   <li class="homepageNewsPubType fl">
-                    <%= link_to ma.course_message.user.show_name, user_path(ma.course_message.user), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
+                    <%= link_to ma.course_message.user.try(:show_name), user_path(ma.course_message.user), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
                     <span class="<%= ma.viewed == 0 ? "homepageNewsTypeNotRead fl" : "homepageNewsType fl" %>">
                       <% if ma.course_message.m_parent_id.nil? %>
                           回复了您的<span class="fontBlue2" title="作业：<%=ma.course_message.jour.name %>">作业</span>：
diff --git a/app/views/users/_user_message_forge.html.erb b/app/views/users/_user_message_forge.html.erb
index 4a3d73ead..38d610aea 100644
--- a/app/views/users/_user_message_forge.html.erb
+++ b/app/views/users/_user_message_forge.html.erb
@@ -162,7 +162,7 @@
     <% if ma.forge_message_type == "Message" %>
         <ul class="homepageNewsList fl">
           <li class="homepageNewsPortrait fl"><a href="javascript:void(0);"><%=link_to image_tag(url_to_avatar(ma.forge_message.author), :width => "30", :height => "30"), user_path(ma.forge_message.author), :target => '_blank' %></a></li>
-          <li class="homepageNewsPubType fl"><%=link_to ma.forge_message.author.show_name, user_path(ma.forge_message.author), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
+          <li class="homepageNewsPubType fl"><%=link_to ma.forge_message.author.try(:show_name), user_path(ma.forge_message.author), :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
             <span class="<%= ma.viewed == 0 ? "homepageNewsTypeNotRead fl":"homepageNewsType fl" %>"><%= ma.forge_message.parent_id.nil? ? "发布了项目帖子：" : "评论了项目帖子：" %></span></li>
           <li class="homepageNewsContent fl"><a href="javascript:void(0);" class="newsGrey">
             <%= link_to ma.forge_message.subject, board_message_path(ma.forge_message.board_id, ma.forge_message.parent_id ? ma.forge_message.parent_id : ma.forge_message.id), :class => "#{ma.viewed==0 ? "newsBlack" : "newsGrey"}", :target => '_blank' %>
@@ -181,7 +181,7 @@
           </a>
           </li>
           <li class="homepageNewsPubType fl">
-            <%=link_to ma.forge_message.author.show_name, user_path(ma.forge_message.author),
+            <%=link_to ma.forge_message.author.try(:show_name), user_path(ma.forge_message.author),
                                                         :class => "newsBlue homepageNewsPublisher", :target => '_blank' %>
             <span class="<%= ma.viewed == 0 ? "homepageNewsTypeNotRead fl":"homepageNewsType fl" %>">评论了新闻：</span>
           </li>