Azure AD身份验证错误：failed_to_acquire_token_silently

Question

在尝试通过Azure AD OpenIdConnect对用户进行身份验证时，我的ASP.NET MVC Core应用程序会随机间隔抛出此错误：

failed_to_acquire_token_silently

解决方法是截断ADAL的数据库表UserTokenCache。

在我的OWIN管道配置中不确定我做错了什么。

用户通过身份验证后，我想获取图表api的令牌，以便从Azure AD检索其他声明。

从catch块抛出异常

 accessToken = authenticationContext.AcquireToken("https://graph.windows.net", 
            clientCredential).AccessToken;

这是完整的方法：

        /// <summary>
    /// This method has been adapted from generated code from a new ASP.NET MVC 5 project template
    /// when using Organisational Accounts authentication.
    /// This method acquires a Token from Azure AD in order to call its Graph API.
    /// The token is acquired using the currently logged in User's refresh token. 
    /// </summary>
    /// <param name="context"></param>
    /// <returns></returns>
    private async Task<string> GetTokenForApplicationAsync()
    {
        ClientCredential clientCredential =
            new ClientCredential(
                Configuration["Authentication:AzureAd:ClientId"],
                Configuration["Authentication:AzureAd:ClientSecret"]);

        AuthenticationContext authenticationContext =
            new AuthenticationContext(
                Configuration["Authentication:AzureAd:AADInstance"] +
                Configuration["Authentication:AzureAd:TenantId"],
                new ADALTokenCacheService(signedInUserID, Configuration));

        string accessToken = null;
        try
        {
            AuthenticationResult authenticationResult = await authenticationContext.AcquireTokenSilentAsync(
                     Configuration["Authentication:AzureAd:GraphResource"],
                    clientCredential,
                    new UserIdentifier(userObjectID, UserIdentifierType.UniqueId));

            accessToken = authenticationResult.AccessToken;
        }
        catch (AdalException e)
        {
            accessToken = authenticationContext.AcquireToken("https://graph.windows.net", 
                clientCredential).AccessToken;

        }

        return accessToken;
    }

我已经看过this post这与我正在处理的问题不同。