本地不能浏览网站

错误信息在这里：Version Information: Microsoft .NET Framework Version:1.1.4322.573; Version:1.1.4322.573
请在你的iis里设置.net为2.0的……
应该是这个吧……

前台浏览没问题，但进后台要登陆进去就提示下面的错误，请指教

Server Error in '/.netceshi1' Application.
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Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   admin_login.ImageButton1_Click(Object sender, ImageClickEventArgs e) +126
   System.Web.UI.WebControls.ImageButton.OnClick(ImageClickEventArgs e) +105
   System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument) +115
   System.Web.UI.WebControls.ImageButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5102

 


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Version Information: Microsoft .NET Framework Version:2.0.50727.42; Version:2.0.50727.42