Hi
When am trying to open the asp.net web application am getting the following
error.

" visual studio.net can not create or open the application, the likeliest
problem is that required components are not installed on the local web
server. Run visual studio setup and the web development component."

Can anybody tell me how to solve this problem.

Thanx in advance
Yoshitha

Few things to try:

1. have you got IIS installed
2. Open the sln file in notepad (or other text editor) and make sure
your aplication is in the same place as that specified in the sln file.
You need to make sure you app is mapping to the correct location.
3. The framework may not have registered asp.net correctly with IIS.
Locate your framework installation,
(%windir%\Microsoft.NET\Framework\v1.1.4322 is a default location) in
there is a exe called aspnet_regiis.exe, run this from the command line
using this command:
aspnet_regiis.exe -i

This will reinstall the asp.net components into IIS.

Hope one of these helps