Description	Resource	Path	Location	Type
Artifact has not been packaged yet. When used on reactor artifact, copy should be executed after packaging: see MDEP-187. (org.apache.maven.plugins:maven-dependency-plugin:3.1.2:copy-dependencies:copy-dependencies:prepare-package)

org.apache.maven.plugin.MojoExecutionException: Artifact has not been packaged yet. When used on reactor artifact, copy should be executed after packaging: see MDEP-187.
	at org.apache.maven.plugins.dependency.AbstractDependencyMojo.copyFile(AbstractDependencyMojo.java:181)
	at org.apache.maven.plugins.dependency.fromDependencies.CopyDependenciesMojo.copyArtifact(CopyDependenciesMojo.java:249)
	at org.apache.maven.plugins.dependency.fromDependencies.CopyDependenciesMojo.doExecute(CopyDependenciesMojo.java:124)
	at org.apache.maven.plugins.dependency.AbstractDependencyMojo.execute(AbstractDependencyMojo.java:144)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
	at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:334)
	at org.eclipse.m2e.core.internal.embedder.MavenImpl.lambda$8(MavenImpl.java:1381)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:179)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:114)
	at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:1380)
	at org.eclipse.m2e.core.project.configurator.MojoExecutionBuildParticipant.build(MojoExecutionBuildParticipant.java:54)
	at com.ianbrandt.tools.m2e.mdp.core.MdpBuildParticipant.executeMojo(MdpBuildParticipant.java:133)
	at com.ianbrandt.tools.m2e.mdp.core.MdpBuildParticipant.build(MdpBuildParticipant.java:67)
	at org.eclipse.m2e.core.internal.builder.MavenBuilderImpl.build(MavenBuilderImpl.java:135)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:169)
	at org.eclipse.m2e.core.internal.builder.MavenBuilderBuildMethod.lambdaBuildMethod.lambdaBuildMethod.execute(MavenBuilder.java:88)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder.build(MavenBuilder.java:197)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:833)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:220)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:263)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:316)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:319)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:371)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:392)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:154)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:244)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
	pom.xml	/bill-logic-service	line 191	Maven Build Problem

maven-dependency-plugin中有如下配置

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-dependency-plugin</artifactId>
  <executions>
    <execution>
      <id>copy</id>
      <phase>install</phase>
      <goals>
        <goal>copy-dependencies</goal>
      </goals>
      <configuration>
        <outputDirectory>
          ${project.build.directory}/lib
        </outputDirectory>
      </configuration>
    </execution>
  </executions>
</plugin>

这中情况下会报错

Artifact has not been packaged yet. When used on reactor artifact, copy should be executed after packaging: see MDEP-187.

解决方法 Eclipse Window -> Preferences -> Maven -> Lifecycle Mappings点击Open workspace lifecycle mappings metadata，然后会打开一个文件，将下面内容复制进去，然后保存。

<?xml version="1.0" encoding="UTF-8"?>
<lifecycleMappingMetadata>
  <pluginExecutions>
    <pluginExecution>
      <pluginExecutionFilter>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-dependency-plugin</artifactId>
        <versionRange>2.10</versionRange>
        <goals>
          <goal>copy-dependencies</goal>
        </goals>
      </pluginExecutionFilter>
      <action>
        <ignore />
      </action>
    </pluginExecution>
  </pluginExecutions>
</lifecycleMappingMetadata>

保存完之后，点击Reload workspace lifecycle mappings metadata,就可以重新构建项目了（Alt+F5）