System.Web Missing most all items including "UI" in ASP.NET project PLUS unable to add .NET references.

Posted on 2010-09-01
Last Modified: 2013-11-27
Hello all.

I'm not sure what is going on here.  I am using VS 2005.  My PC has up to .Net 3.5 SP1 installed.  Here is the process I go through to reproduce my error.

-Open VS 2005 and select Create Website
-Select ASP.NET Website and select my path (File System and Visual Basic are selected)
-The project creates and I'm looking at a blank "Default.aspx"
-I open "Default.aspx.vb" and automatically "Inherits System.Web.UI.Page" has a blue squigly line with an error saying "Type 'System.Web.UI.Page' is not defined"
-I right-click my project and select "Add Reference", the box opens, but I can't go further.

Long story short, I can't add anything in the ".NET" tab.  The error is always "A reference to '#####.dll' could not be added."  I CAN add custom dlls and was able to add a COM reference.

Again, this is a FRESH PROJECT with NO changes made to the ASP.NET website or back-end code.  Also, I CAN add .NET references in a separate Windows Forms VB.NET application.  I have repeated this process several times with the same result.  The project build fails even though I make no changes.

Here is my web.config.  Please Help!
<?xml version="1.0"?>


    Note: As an alternative to hand editing this file you can use the 

    web admin tool to configure settings for your application. Use

    the Website->Asp.Net Configuration option in Visual Studio.

    A full list of settings and comments can be found in 

    machine.config.comments usually located in 








            Set compilation debug="true" to insert debugging 

            symbols into the compiled page. Because this 

            affects performance, set this value to true only 

            during development.

            Visual Basic options:

            Set strict="true" to disallow all data type conversions 

            where data loss can occur. 

            Set explicit="true" to force declaration of all variables.


        <compilation debug="false" strict="false" explicit="true" />



                <clear />

                <add namespace="System" />

                <add namespace="System.Collections" />

                <add namespace="System.Collections.Specialized" />

                <add namespace="System.Configuration" />

                <add namespace="System.Text" />

                <add namespace="System.Text.RegularExpressions" />

                <add namespace="System.Web" />

                <add namespace="System.Web.Caching" />

                <add namespace="System.Web.SessionState" />

                <add namespace="System.Web.Security" />

                <add namespace="System.Web.Profile" />

                <add namespace="System.Web.UI" />

                <add namespace="System.Web.UI.WebControls" />

                <add namespace="System.Web.UI.WebControls.WebParts" />

                <add namespace="System.Web.UI.HtmlControls" />




            The <authentication> section enables configuration 

            of the security authentication mode used by 

            ASP.NET to identify an incoming user. 


        <authentication mode="Windows" />


            The <customErrors> section enables configuration 

            of what to do if/when an unhandled error occurs 

            during the execution of a request. Specifically, 

            it enables developers to configure html error pages 

            to be displayed in place of a error stack trace.

        <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">

            <error statusCode="403" redirect="NoAccess.htm" />

            <error statusCode="404" redirect="FileNotFound.htm" />





Open in new window

Question by:puffdaddy411
  • 4
  • 3
  • 2
  • +1

Expert Comment

ID: 33580089
It looks like you VS2005 installation is corrupt.

You may use Repair option that is available Start-->Control Panel --> Add Remove --> Microsoft Visual Studio 2005 --Change/Remove -->Repair

Author Comment

ID: 33580220
Sorry....forgot to mention I ran that twice. The first time (yesterday) it failed with a .NET 2.0 error.  The second time, it completed but there was still an error log created.  It looks like I recieved the same 2 errors for both attempts.
[08/31/10,13:24:22] Microsoft .NET Framework 2.0: [2] Error code 1603 for this component means "Fatal error during installation."

[08/31/10,13:24:22] Microsoft .NET Framework 2.0: [2] Setup Failed on component Microsoft .NET Framework 2.0

[09/01/10,10:58:15] Microsoft .NET Framework 2.0: [2] Error code 1603 for this component means "Fatal error during installation."

[09/01/10,10:58:15] Microsoft .NET Framework 2.0: [2] Setup Failed on component Microsoft .NET Framework 2.0


Expert Comment

by:Mohit Vijay
ID: 33580235
check system.web and other in gac (c:\windows\assembly) folder, if its not there, then please place those dlls in GAC

Author Comment

ID: 33580310
They are in the GAC and available a separate Windows Forms App I have.

Expert Comment

by:Mohit Vijay
ID: 33580345
Are you using Pirated version or some old CD to install :), may be your installation CD has some problem, after seeing your second post its seems to me :).
3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.


Author Comment

ID: 33580735
Negative.  This is a major corporation that uses all legitimate licensing.  Why do you think I'm still on VS 2005?  My dept. hasn't bucked up the cash for an upgrade.  
LVL 12

Accepted Solution

rgn2121 earned 500 total points
ID: 33583313
I'm going to go out on a limb here and say that it might be profile related.  If you have attempted to repair the install maybe it is your profile on the workstation.  I suggest having another user in your group login and try the same things that you have mentioned above.  If it works, then it might be that renaming your profile and logging in with a new one might fix your issue...

Expert Comment

by:Mohit Vijay
ID: 33583461
I only want to say that your installation CD has some problem, I am not asking to upgrade from VS2005.

Reason Errors those your provide:
[08/31/10,13:24:22] Microsoft .NET Framework 2.0: [2] Error code 1603 for this component means "Fatal error during installation."

[08/31/10,13:24:22] Microsoft .NET Framework 2.0: [2] Setup Failed on component Microsoft .NET Framework 2.0

[09/01/10,10:58:15] Microsoft .NET Framework 2.0: [2] Error code 1603 for this component means "Fatal error during installation."

[09/01/10,10:58:15] Microsoft .NET Framework 2.0: [2] Setup Failed on component Microsoft .NET Framework 2.0

Expert Comment

ID: 33596884
VS2005 installation disc's Shipped by are messy. These mixed.

I would recommend you to first copy/dump to a folder and install from there so that you can find missing package file from cd's and copy to the respective folders.

That is how i fixed this problem when I have to install vs2005.

Other option is to download from Microsoft as an one .iso file and install.

Hope this information helps.

Good Luck!!!

Author Comment

ID: 33597302
About the installation CD:  We install from network packages that are built by cert and testing departments.  I only have access to that package (which is available to everyone else) and do not have access to a CD.  
That being said, rgn2121's solution worked for me!  I must have corrupted my own profile's installation of VS.  Other users were not able to reproduce my problem.  Unfortunately, I wasn't able to determine the actual "CAUSE" of this problem, but I was able to fix it.
Thank you all for your replies and suggestions.

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Just a quick little trick I learned recently.  Now that I'm using jQuery with abandon in my applications, I have grown tired of the following syntax:      (CODE) I suppose it just offends my sense of decency to put inline VBScript on a…
User art_snob ( encountered strange behavior of Android Web browser on his Mobile Web site. It took a while to find the true cause. It happens so, that the Android Web browser (at least up to OS ver. 2.…
This video explains how to create simple products associated to Magento configurable product and offers fast way of their generation with Store Manager for Magento tool.
I designed this idea while studying technology in the classroom.  This is a semester long project.  Students are asked to take photographs on a specific topic which they find meaningful, it can be a place or situation such as travel or homelessness.…

914 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now