SharePoint Services 3.0 File not found error when upgrading to moss 2007

SharePoint Services 3.0 File not found error when upgrading to moss 2007

Hello!

Receiving a File Not Found error without any descriptions to it is another very common error in SharePoint Site. This error means that the page did not find the files it was asked to process. There are many ways to fix this kind of problem:

1. If you configured your SharePoint Site to use Forms Authentication, this error will appear.

2. Links in the user controls added to the templates may not be accessible. Check the links. Most of the time, they are wrong.

3. Check your trust level in the web.config file. SharePoint server needs permission to access an external URL. If your trust level is set to minimum, you will most likely get a File Not Found error. The trust level in SharePoint server is usually set to medium.

   <trust level=”WSS_Medium” origin???Url=””/>

4. It can also be that the DLL is missing. Check the bin directory in your website's root. You may have placed it there.

5. You can update the web.config. Open it and you'll see

              configuration xmlns=”http://schemas.microsoft.com/error.aspx?aspxerrorpath=/library/ms123402.aspx”

              Remove the xmlns attribute in the web.config then reset the IIS.

Good Luck!