473,239 Members | 1,461 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,239 software developers and data experts.

Strange "Object reference not set to an instance of an object" error in webform

I suddenly received an unexpected error in my project. I have been working
on this project for some time without this issue. Nothing has changed in the
form that caused the exception. A little experimentation shows that I cannot
run ANY .NET web project without getting this error:
----------------------------------------------------------------------------
----

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:

Line 1: <%@ Page Language="vb" AutoEventWireup="false"
Codebehind="Login.aspx.vb" Inherits="DataBayWeb.Login" %>
Line 2: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
Line 3: <HTML>

Source File: c:\inetpub\wwwroot\DataBayWeb\login.aspx Line: 1

Stack Trace:

[NullReferenceException: Object reference not set to an instance of an
object.]
System.Web.UI.Control.get_Controls()
System.Web.UI.Control.AddParsedSubObject(Object obj)

System.Web.UI.Control.System.Web.UI.IParserAccesso r.AddParsedSubObject(Objec
t obj)
ASP.Login_aspx.__BuildControlTree(Control __ctrl) in
c:\inetpub\wwwroot\DataBayWeb\login.aspx:1
ASP.Login_aspx.FrameworkInitialize()
System.Web.UI.Page.ProcessRequest()
System.Web.UI.Page.ProcessRequest(HttpContext context)

System.Web.CallHandlerExecutionStep.System.Web.Htt pApplication+IExecutionSte
p.Execute()
System.Web.HttpApplication.ExecuteStep(IExecutionS tep step, Boolean&
completedSynchronously)

Other developers on my team can run the latest version of the project
without an issue. What has happened?

Chris
Nov 18 '05 #1
1 2782
Very strange indeed. It might sound obscure, but try removing the
space in <%@ Page...

Otherwise, I would be tempted to do the inevitable and reinstall the
framework.

Simon.
Nov 18 '05 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

7
by: deko | last post by:
I'm getting intermittent "Object Invalid or No Longer Set" errors in my Access 2002 mdb. What causes these errors? Has anyone dealt with this before? I can't trace it because it's not easy...
6
by: Lauchlan M | last post by:
Hi. Usin ASP.NET, getting an "Object reference not set to an instance of an object" error. In my login.aspx page I have: string arrUserRoles = new string {"UserRole"};...
1
by: Kamal | last post by:
I am trying to send mail through smtp. smtp service is running on my machine. But every time during the smtpmail.send(msg) call gives "Could not access 'CDO.Message' object." error. Could some...
1
by: Lauchlan M | last post by:
Hi. I'm using ASP.NET, getting an "Object reference not set to an instance of an object" error. In my login.aspx page I have: string arrUserRoles = new string {"UserRole"};...
2
by: prince -=nore=- | last post by:
I have a page, where I'm retrieving a file location from a database and outputting it's contents (HTML) onto a web page. On the aspx page, I have referred to the code behind it using the line...
2
by: chuckdfoster | last post by:
I am getting a "Could Not Access CDO.Message Object" Error when I try to use the following code to send an email via ASP.NET. When I run this on one machine it works, on another one it doesn't. ...
1
by: craig.melbourne | last post by:
I'm getting a strange bug with my of my applications When I build and run the app on my develpment machine all works fine. Once I move it to another machine I get a typical Object Reference...
7
by: dhnriverside | last post by:
Hi peeps I'm just following this HOW-TO from MSDN.. http://support.microsoft.com/default.aspx?scid=kb;en-us;306355 But I've got a problem. I've adding the #using System.Diagnostics; line to...
2
by: louie.hutzel | last post by:
This JUST started happening, I don't remember changing any code: When I click the submit button on my form, stuff is supposed to happen (which it does correctly) and a result message is posted back...
5
by: piyumi80 | last post by:
hi, i write the following code to get a specific data row from the data set.but it generates the "Object reference not set to an instance of an object.".....error private void...
3
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 3 Jan 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). For other local times, please check World Time Buddy In...
2
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 7 Feb 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:30 (7.30PM). In this month's session, the creator of the excellent VBE...
0
by: stefan129 | last post by:
Hey forum members, I'm exploring options for SSL certificates for multiple domains. Has anyone had experience with multi-domain SSL certificates? Any recommendations on reliable providers or specific...
0
Git
by: egorbl4 | last post by:
Скачал я git, хотел начать настройку, а там вылезло вот это Что это? Что мне с этим делать? ...
1
by: davi5007 | last post by:
Hi, Basically, I am trying to automate a field named TraceabilityNo into a web page from an access form. I've got the serial held in the variable strSearchString. How can I get this into the...
0
by: MeoLessi9 | last post by:
I have VirtualBox installed on Windows 11 and now I would like to install Kali on a virtual machine. However, on the official website, I see two options: "Installer images" and "Virtual machines"....
0
by: DolphinDB | last post by:
The formulas of 101 quantitative trading alphas used by WorldQuant were presented in the paper 101 Formulaic Alphas. However, some formulas are complex, leading to challenges in calculation. Take...
0
by: Aftab Ahmad | last post by:
Hello Experts! I have written a code in MS Access for a cmd called "WhatsApp Message" to open WhatsApp using that very code but the problem is that it gives a popup message everytime I clicked on...
0
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.