I have sotnet 1.1 and 2.0 both are installed on my machine. When I create new asp.net web project in vs 2003 and tried to run it, it gives an error “unable to start debugging on server.”, the call stack shows an error mentioned in title. This is the case for all VS 2003 projects.
The solution is you need to select appropriate version of CLR in IIS. Go to
Start –> Run –> type “inetmgr” and press ok. It opens IIS. Select appropriate version of IIS as shown in fig.
Fig-(1) Set CLR Version.
Select version 1.1.4322 for VS 2003 project and 2.0.50727 for VS 2005 projects.