CompletableFuture API err: System Error, please try again later! Message:dubbo 2.6 does not support metadata

[daidai21]

• [ ] I have searched the issues of this repository and believe that this is not a duplicate.
• [ ] I have checked the REAMDE of this repository and believe that this is not a duplicate.

Environment

• Dubbo Admin version: recent
• Operating System version: mac
• Java version: 1.8

Steps to reproduce this issue

define api:

public interface HelloService {

    CompletableFuture<String> sayHelloAsync(String name);
}

then run server:

System Error, please try again later! Message:dubbo 2.6 does not support metadata

Expected Result

What do you expected from the above steps？

Actual Result

What actually happens?

If there is an exception, please attach the exception trace:

Just put your stack trace here!

[haoyann]

是用的 dubbo 2.6 版本吗, 可以检查一下 dubbo 服务的配置中心和元数据中心有没有配置。

[daidai21]

public interface HelloService {
    String sayHello(String name);
}

可是同样的环境，这种接口没问题，异步接口就不行

[haoyann]

你 dubbo 版本时多少，我使用 3.0.8 版本本地测试异步是正常的.