File or assembly name System.Web, or one of its dependencies, was not found.

Question

Has anyone come across an error message that is similar to the one in the Subject box - and how did you rectify it please? It came up when I tried to run a program to create a Web Form. The program should be right, as it is from a training course and is the one that was already completed for me by the course team. Thanks, Martyn.

Answer 1

I am sorry that I cannot help any more. I wish I could help. I hope someone else can help you and that they do help.

Answer 2

yes ping reply is coming you can see it from screen shot

Answer 3

I am sorry that I cannot help very much but I am surprised that no one else is helping.

Can you ping that server? Do you know how to ping? You can go to a command prompt window and use the ping command with the url as a parameter, as in:

ping localhost

Answer 4

Hi thanks for the reply
                               following is try catch error msg and my firewall is already set off.

{System.Net.WebException: Could not establish connection to network.
at System.Net.HttpWebRequest.finishGetResponse()
at System.Net.HttpWebRequest.GetResponse()
at System.Web.Services.Protocols.WebClientProtocol.GetWebResponse()
at System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse()
at System.Web.Services.Protocols.SoapHttpClientProtocol.doInvoke()
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke()
at DeviceApplication1.localhost.WebService.HelloWorld()
at DeviceApplication1.Form1.button1_Click()
at System.Windows.Forms.Control.OnClick()
at System.Windows.Forms.Button.OnClick()
at System.Windows.Forms.ButtonBase.WnProc()
at System.Windows.Forms.Control._InternalWnProc()
at Microsoft.AGL.Forms.EVL.EnterMainLoop()
at System.Windows.Forms.Application.Run()
at DeviceApplication1.Program.Main()
}

Answer 5

That is not the complete and accurate error message. Please provide the complete and accurate error message. You can use try/catch to get the complete error message.

Are you sure the firewall is allowing the connection? It might be not allowing it.