error downloading $metadata from webservice

问题:

I am trying to add web reference when adding web reference url in windows application it shows error like this. how do i solve it?

There was an error downloading 'http://www.example.com/BackEndWebService/LoginWebService.asmx/$metadata'.

The request failed with the error message:

$metadata Web Service method name is not valid.

回答1:

I had the same issue the other day when tried to update the web reference and managed to fix it by adding ?WSDL at the end. That should work.