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错误 CS5001 程序不包含适合于入口点的静态 “Main” 方法 GrpcGreeterClient F:\Users\invengo\source\repos\GrpcGreeterClient\CSC 1 活动 程序不包含适合于入口点的静态 “Main” 方法

报错代码

        static async void Main(string[] args)
        {
            // The port number must match the port of the gRPC server.
            using var channel = GrpcChannel.ForAddress("https://localhost:7232");
            var client = new Greeter.GreeterClient(channel);
            var reply = await client.SayHelloAsync(
                              new HelloRequest { Name = "GreeterClient" });
            Console.WriteLine("Greeting: " + reply.Message);
            Console.WriteLine("Press any key to exit...");
            Console.ReadKey();
        }

问题描述

在Main方法中使用await调用异步方法，报错

处理方案

修改为： static async Task Main(string[] args)
编译通过，问题解决。

修改后的代码

        static async Task Main(string[] args)
        {
            // The port number must match the port of the gRPC server.
            using var channel = GrpcChannel.ForAddress("https://localhost:7232");
            var client = new Greeter.GreeterClient(channel);
            var reply = await client.SayHelloAsync(
                              new HelloRequest { Name = "GreeterClient" });
            Console.WriteLine("Greeting: " + reply.Message);
            Console.WriteLine("Press any key to exit...");
            Console.ReadKey();
        }