maven报错 You have to use a classifier to attach supplemental artifacts

完整报错

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-jar-plugin:3.3.0:jar (default-jar) on project **: You have to use a classifier to attach supplemental artifacts to the project instead of replacing them. -> [Help 1]

解决办法

修改编译命令，原命令
mvn clean install package
修改后
mvn clean package

原因不明，加了shade插件后mvn clean install package会报错，原来不会报错。 install package不能同时保留。