I'm getting the “missing a using directive or assembly reference” and no clue what's going wrong

Question

I\'m trying to allow a user to enter data into a textbox that will be added to the web.config file. I\'ve added the relevent lines to the web.config file but when I make thi

Answer 1

You probably don't have the System.Configuration dll added to the project references. It is not there by default, and you have to add it manually.

Right-click on the References and search for System.Configuration in the .net assemblies.

Check to see if it is in your references...

Right-click and select Add Reference...

Find System.Configuration in the list of .Net Assemblies, select it, and click Ok...

The assembly should now appear in your references...