The remote server returned an error: (401) Unauthorized

[GoogleCodeExporter]

I am building a c# desktop installed application to access Google calendar. I 
want to use OAuth Lib to get Access token for the Google user.

Here is my code

==================================================================

UnityContainer unityContainer = new UnityContainer();

UnityConfigurationSection section = 
(UnityConfigurationSection)ConfigurationManager.GetSection(“oauth.net.consumer
”);

section.Containers.Default.Configure(unityContainer);

ServiceLocator.SetLocatorProvider(() => new 
UnityServiceLocator(unityContainer));

OAuthConsumer oAuthConsumer = new OAuthConsumer(“anonymous”, 
“anonymous”, “My application”);
OAuthService oAuthService = OAuthService.Create(new 
EndPoint(“https://www.google.com/accounts/OAuthGetRequestToken”), new 
Uri(“https://www.google.com/accounts/OAuthAuthorizeToken”), new 
EndPoint(“https://www.google.com/accounts/OAuthGetAccessToken”), 
oAuthConsumer);

OAuthRequest oAuthRequest = OAuthConsumerRequest.Create(new 
EndPoint(GoogleCalendarFeed), oAuthService);

OAuthResponse oAuthResponse = oAuthRequest.GetResource();

======================================================================

Here is my App.config file

======================================================================
<configuration>
  <configSections>
    <section name="oauth.net.consumer" type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection, Microsoft.Practices.Unity.Configuration"/>
  </configSections>
  <oauth.net.consumer>
    <containers>
      <container>
        <types>
          <type type="OAuth.Net.Common.ISigningProvider, OAuth.Net.Common"
                 mapTo="OAuth.Net.Components.HmacSha1SigningProvider, OAuth.Net.Components"></type>
          <type type="OAuth.Net.Common.INonceProvider, OAuth.Net.Common"
                     mapTo="OAuth.Net.Components.GuidNonceProvider, OAuth.Net.Components" />
        </types>
      </container>
    </containers>
  </oauth.net.consumer>
</configuration>
=========================================================================

I am getting error "The remote server returned an error: (401) Unauthorized", 
when I call oAuthRequest.GetResource();

what am I doing wrong?

What is the best way to get access token in a installed application?

Thanks

Original issue reported on code.google.com by na.sage...@gmail.com on 8 Jan 2011 at 12:29