Adding a web reference to an externally hosted asmx service

Question

Hey programmers!!!

While adding a web reference to an externally hosted asmx web service I am getting an error "Value cannot be null.
Parameter name: discoveryError & mexError". And the button "Add reference" appearing disabled. Kindly help me people. Below is the screen shot of problem.

Mariee A · Answer

Thank u for the link. I've already found the solution. And let me share the solution so that it can benefit others. We have to change the web.config file of the project. Just add these tags in web.config file. And Then create the object of the service reference like this(in .aspx.cs file). reference_Name.Service_NameSoapClient object_name = new reference_Name.Service_NameSoapClient(); And then call the web method like this. object_name.method_name(parameter1parameter2); Here I've made the explanation generic by using reference_NameService_Name object_name These are not keywords :)

Murugesh P · Answer

Hi Hope this will help you http://stackoverflow.com/questions/3454788/any-reference-to-profilecommon-causes-error-value-cannot-be-null-parameter-name