seata nacos 启动报错

启动一直报这个
no available service 'null' found, please make sure registry config correct

有人说service.vgroup_mapping跟项目配置的不一样。。。
都是按照demo里的说明配置的，确定service.vgroup_mapping这个是一样的，启动还是报错

Start with the demo instructions and the Nacos registry configuration used by the sample, then compare service.vgroup_mapping with the project configuration. Confirm the exact startup configuration that produces the error and verify that the sample starts without the “no available service 'null' found” message.

Written by the indexing model from the issue text.