无法创建抽象类或接口的实例'Microsoft.Practices.EnterpriseLibrary.WindowsAzure.TransientFaultHandling.RetryManager'

Question

我只是试图在azure中重试瞬态失败的逻辑，这是我的代码，我收到了这个错误。

Cannot create an instance of the abstract class or interface 'Microsoft.Practices.EnterpriseLibrary.WindowsAzure.TransientFaultHandling.RetryManager'

帮我宽一点

        const string defaultRetryStrategyName = "fixed";
        const int retryCount = 10;
        var retryIntervel = TimeSpan.FromSeconds(3);
        var strategy = new FixedInterval(defaultRetryStrategyName, retryCount, retryIntervel);
        var strategies = new List<RetryStrategy> { strategy };
        var manager = new RetryManager(strategies, defaultRetryStrategyName);
        RetryManager.SetDefault(manager);