解决 未知的服务器标记“asp:ScriptManager”的方法

分析器错误 
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分析器错误消息: 未知的服务器标记“asp:ScriptManager”。

原因 web.config,没有配置好!

删除后,重新产生一个新的web.config,问题解决!

pages配置

  
    

   
     <
   
     system.web
   
     >
   
     
 
   
     <
   
     pages
   
     >
   
     
 
   
     <
   
     controls
   
     >
   
     
 
   
     <
   
     add 
   
     tagPrefix
   
     ="asp"
   
      namespace
   
     ="System.Web.UI"
   
      assembly
   
     ="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
   
     />
   
     
 
   
     </
   
     controls
   
     >
   
     
 
   
     </
   
     pages
   
     >
   
     
 
   
     <!--
   
     
 Set compilation debug="true" to insert debugging
 symbols into the compiled page. Because this
 affects performance, set this value to true only
 during development.
 
   
     -->
   
     
 
   
     <
   
     compilation 
   
     debug
   
     ="false"
   
     >
   
     
 
   
     <
   
     assemblies
   
     >
   
     
 
   
     <
   
     add 
   
     assembly
   
     ="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
   
     />
   
     
 
   
     </
   
     assemblies
   
     >
   
     
 
   
     </
   
     compilation
   
     >
   
     

 
   
     <
   
     httpHandlers
   
     >
   
     
 
   
     <
   
     remove 
   
     verb
   
     ="*"
   
      path
   
     ="*.asmx"
   
     />
   
     
 
   
     <
   
     add 
   
     verb
   
     ="*"
   
      path
   
     ="*.asmx"
   
      validate
   
     ="false"
   
      type
   
     ="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
   
     />
   
     
 
   
     <
   
     add 
   
     verb
   
     ="*"
   
      path
   
     ="*_AppService.axd"
   
      validate
   
     ="false"
   
      type
   
     ="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
   
     />
   
     
 
   
     <
   
     add 
   
     verb
   
     ="GET,HEAD"
   
      path
   
     ="ScriptResource.axd"
   
      type
   
     ="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
   
      validate
   
     ="false"
   
     />
   
     
 
   
     </
   
     httpHandlers
   
     >
   
     

 
   
     <
   
     httpModules
   
     >
   
     
 
   
     <
   
     add 
   
     name
   
     ="ScriptModule"
   
      type
   
     ="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
   
     />
   
     
 
   
     </
   
     httpModules
   
     >
   
     
 
   
     </
   
     system.web
   
     >