IDL 定义跨语言服务

直接编译找不到插件呀

[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.xolstice.maven.plugins:protobuf-maven-plugin:0.6.1:compile (default) on project tri-stub-demo: Unable to resolve plugin artifact: Missing:
[ERROR] ----------
[ERROR] 1) org.apache.dubbo:dubbo-compiler:jar:0.0.4.1-SNAPSHOT
[ERROR]
[ERROR] Try downloading the file manually from the project website.
[ERROR]
[ERROR] Then, install it using the command:
[ERROR] mvn install:install-file -DgroupId=org.apache.dubbo -DartifactId=dubbo-compiler -Dversion=0.0.4.1-SNAPSHOT -Dpackaging=jar -Dfile=/path/to/file
[ERROR]
[ERROR] Alternatively, if you host your own repository you can deploy the file there:
[ERROR] mvn deploy:deploy-file -DgroupId=org.apache.dubbo -DartifactId=dubbo-compiler -Dversion=0.0.4.1-SNAPSHOT -Dpackaging=jar -Dfile=/path/to/file -Durl=[url] -DrepositoryId=[id]
[ERROR]
[ERROR] Path to dependency:
[ERROR] 1) org.apache.dubbo:tri-stub-demo:jar:1.0-SNAPSHOT
[ERROR] 2) org.apache.dubbo:dubbo-compiler:jar:0.0.4.1-SNAPSHOT
[ERROR]
[ERROR] ----------
[ERROR] 1 required artifact is missing.
[ERROR]
[ERROR] for artifact:
[ERROR] org.apache.dubbo:tri-stub-demo:jar:1.0-SNAPSHOT
[ERROR]

Start by reproducing the direct compile in the tri-stub-demo project and inspect the Maven configuration for the org.apache.dubbo:dubbo-compiler:0.0.4.1-SNAPSHOT dependency. Done means the IDL cross-language service demo compiles without the missing-plugin error.

Written by the indexing model from the issue text.