我正在尝试在 Intellij IDEA 上进行测试，scala maven project
我跑步时
MVN测试
我收到此错误：
Failed to execute goal net.alchim31.maven:scala-maven-plugin:3.2.0:compile (scala-compile) on project neo4j-spark-connector: Execution scala-compile of goal net.alchim31.maven:scala-maven-plugin:3.2.0:compile failed: For artifact {null:null:null:jar}: The groupId cannot be empty.
这是我刚刚添加了此依存关系的pom.xml：
<dependency>
<groupId>neo4j-contrib</groupId>
<artifactId>neo4j-spark-connector</artifactId>
<version>2.1.0-M4</version>
</dependency>
这是错误日志：
[ERROR] Failed to execute goal net.alchim31.maven:scala-maven- plugin:3.2.0:compile (scala-compile) on project neo4j-spark-connector: Execution scala-compile of goal net.alchim31.maven:scal
a-maven-plugin:3.2.0:compile failed: For artifact {null:null:null:jar}: The groupId cannot be empty. -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal net.alchim31.maven:scala-maven-plugin:3.2.0:compile (scala-compile) on project neo4j-spark-connector: Execution scala-compile of goal net.alchim31.maven:scala-maven-plugin:3.2.0:compile failed: For artifact {null:null:null:jar}: The groupId cannot be empty.
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution scala-compile of goal net.alchim31.maven:scala-maven-plugin:3.2.0:compile failed: For artifact {null:null:null:jar}:
The groupId cannot be empty.
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:148)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
Caused by: org.apache.maven.artifact.InvalidArtifactRTException: For artifact {null:null:null:jar}: The groupId cannot be empty.
at org.apache.maven.artifact.DefaultArtifact.validateIdentity (DefaultArtifact.java:131)
at org.apache.maven.artifact.DefaultArtifact.<init> (DefaultArtifact.java:124)
at org.apache.maven.bridge.MavenRepositorySystem.createArtifactX (MavenRepositorySystem.java:565)
at org.apache.maven.bridge.MavenRepositorySystem.createArtifactX (MavenRepositorySystem.java:524)
... 这是我可以从错误日志中发布的内容，该网站不允许更多内容 如何解决？
答案 0 :(得分：0)
我发现了与我的here相同的问题，因此我将 maven-scala-plugin 升级到了3.3.3而不是3.2.0，先前的错误消失了
答案 1 :(得分：0)