liubao68 commented on issue #1291:
URL:
https://github.com/apache/servicecomb-java-chassis/issues/1291#issuecomment-671898086
```
java.lang.Error: no schema defined for xxx.xxx
at
org.apache.servicecomb.provider.springmvc.reference.CseClientHttpRequest.createRequestMeta(CseClientHttpRequest.java:164)
~[provider-springmvc-1.3.0.B007.jar:1.3.0.B007]
at
org.apache.servicecomb.provider.springmvc.reference.CseClientHttpRequest.execute(CseClientHttpRequest.java:144)
~[provider-springmvc-1.3.0.B007.jar:1.3.0.B007]
at
org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:735)
~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
at
org.springframework.web.client.RestTemplate.execute(RestTemplate.java:710)
~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
at
org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:598)
~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
at
org.apache.servicecomb.provider.springmvc.reference.RestTemplateWrapper.exchange(RestTemplateWrapper.java:214)
~[provider-springmvc-1.3.0.B007.jar:1.3.0.B007]
```
如果发生这个错误， 很有可能是在 java-chassis 启动没有就绪的情况下，调用远程接口。 比如在 bean 的初始化过程中调用其他远程接口。
发起对远程接口的调用， 需要在java-chassis启动就绪， 即 AFTER_REGISTRY 事件之后。
参考[服务启动事件](https://docs.servicecomb.io/java-chassis/zh_CN/build-provider/event-listener/)
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