运行后出现
编译错误 
说明: 在编译向该请求提供服务所需资源的过程中出现错误。请检查下列特定错误详细信息并适当地修改源代码。 

编译器错误信息: CS0117: “ASP.masterpage_master”并不包含“Search1_Load”的定义

源错误:

 

行 90:                                             <td valign="bottom" style="height: 36px; text-align: left">
行 91:                                                 <span class="huise1" style="width: 100px; height: 22px">
行 92:                                                     <uc3:search ID="Search1" runat="server" OnLoad="Search1_Load" />
行 93:                                                 </span>
行 94:                                             </td>
 

源文件: d:\project\WuLiu\MasterPage.master    行: 92 


请问是怎么回事，怎样解决，谢谢