Failed to acquire token silently. Call method AcquireToken my code <pre lang="C#">string AccessToken = string.Empty; string userObjectID = ClaimsPrincipal.Current.FindFirst("http://schemas.microsoft.com/identity/claims/objectidentifier").Value; AuthenticationContext authContext = new AuthenticationContext(Authority, new NaiveSessionCache(userObjectID)); ClientCredential credential = new ClientCredential(clientId, appKey); AuthenticationResult result = null; if ((HttpContext.Current.Session["AccessToken"] == null && HttpContext.Current.Session["RefreshToken"] == null)) { result = authContext.AcquireTokenSilent(todoListResourceId, credential, new UserIdentifier(userObjectID, UserIdentifierType.UniqueId)); AccessToken = result.AccessToken; HttpContext.Current.Session["AccessToken"] = result.AccessToken; HttpContext.Current.Session["RefreshToken"] = result.RefreshToken;</pre>
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