How to fix ambiguous reference errors?

Question

I have a web app that allows importing of contacts from Hotmail, Yahoo and GMail. I finally have it almost completed but since I added the importing of GMail, I am getting ambiguous reference errors and I am unsure how to fix them without breaking any code.

Here is a screen shot of the errors:

Answer 1

1. Try to use unique class names as much as possible. This will be the better solution in the end.

2. Write the entire namespace when referencing

    OAuth.OAuthBase a = new ...; Google.GData.Client.OAuthBase b = new ...; 

3. Make an using alias for one or both:

    using n2 = OAuth; using Google.GData.Client; n2.OAuthBase a = new ...; // referenced using namespace OAuthBase b = new ...; // referenced through existing `using` 

Answer 2

you can try something like this..

using GoogleOAuthBase = Google.GData.Client.OAuthBase;

namespace abc
{


    public class Program
    {        
           //make sure this Google.GData.Client.OAuthBase is instansiateable
           var googleBase = new GoogleOAuthBase();
     }
}

2. you can try entire name space as well.

    var googleBase = new Google.GData.Client.OAuthBase();