打包，运行
mvn assembly:assembly
报错
Error creating assembly archive pack: You must set at least one file
原来的 pom 中 maven-assembly-plugin 是这样的
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<version>2.3</version>
</plugin>
修改后
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<version>2.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
再运行
mvn assembly:assembly
可行
原文：https://www.cnblogs.com/Jomini/p/12301311.html