Unable to create Discovery Client object for Accessing Office365 calendar

Question

I'm trying to get DiscoveryClient Object for Creating Office365. I'm getting the following exception.
{"Exception of type 'Microsoft.Office365.Discovery.DiscoveryFailedException' was thrown."}
Code for this is :
public static async Task<OutlookServicesClient> EnsureClientCreatedAsync()
            try
                AuthenticationContext = new AuthenticationContext(CommonAuthority);
                if (AuthenticationContext.TokenCache.ReadItems().Count() > 0)
                    // Re-bind AuthenticationContext to the authority source of the cached token.
                    // This is needed for the cache to work when asking for a token from that
                    // authority.
                    string cachedAuthority = AuthenticationContext.TokenCache.ReadItems().First().Authority;
                    AuthenticationContext = new AuthenticationContext(cachedAuthority);
                DiscoveryClient discoveryClient = new DiscoveryClient( async () => await AcquireTokenAsync(AuthenticationContext, DiscoveryResourceId));
                // Get the "Calendar" capability.
                CapabilityDiscoveryResult result = await discoveryClient.DiscoverCapabilityAsync("Calendar");
                var client = new OutlookServicesClient(result.ServiceEndpointUri, async () => await AcquireTokenAsync(AuthenticationContext, result.ServiceResourceId));
                return client;
            catch (Exception)
                if (AuthenticationContext != null && AuthenticationContext.TokenCache != null)
                    AuthenticationContext.TokenCache.Clear();
                return null;
Any suggestions?

Answer 1

Hi,
Seems more relate to Office 365 development,
I suggest you post it to the corresponding forum, you will get more help there.
http://community.office365.com/en-us/forums/default.aspx
Best regards
Patrick Liang
TechNet Community Support