Maven编译器插件3.x:

我现在有一个maven问题。 我创建了一个新的测试项目来简化问题:

错误接缝是:

Caused by: java.lang.ClassNotFoundException: org.codehaus.plexus.util.cli.CommandLineException at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230) ... 59 more 

-v给了我:

Apache Maven 3.0.4(r1232337; 2012-01-17 09:44:56 + 0100)Maven主页:/ home / ubuntu / workspaces / projectx / test / EMBEDDED Java版本:1.7.0_21,供应商:Oracle Corporation Java主页: / usr / lib / jvm / java-7-openjdk / jre默认语言环境:de_DE,平台编码:UTF-8操作系统名称:“linux”,版本:“3.0.0-32-generic”,arch:“amd64”,家庭:“unix”

而pom是:

   4.0.0 test test 0.0.1-SNAPSHOT    org.apache.maven.plugins maven-compiler-plugin 3.0  1.7 1.7      

这给了我:

  [INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building test 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-resources-plugin:2.5:resources (default-resources) @ test --- [debug] execute contextualize [WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, ie build is platform dependent! [INFO] Copying 0 resource [INFO] [INFO] --- maven-compiler-plugin:3.0:compile (default-compile) @ test --- [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 2.170s [INFO] Finished at: Wed Nov 06 22:21:53 CET 2013 [INFO] Final Memory: 6M/115M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile) on project test: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile failed: A required class was missing while executing org.apache.maven.plugins:maven-compiler-plugin:3.0:compile: org/codehaus/plexus/util/cli/CommandLineException [ERROR] ----------------------------------------------------- [ERROR] realm = plugin>org.apache.maven.plugins:maven-compiler-plugin:3.0 [ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy [ERROR] urls[0] = file:/home/username/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/3.0/maven-compiler-plugin-3.0.jar [ERROR] urls[1] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar [ERROR] urls[2] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.1/maven-shared-utils-0.1.jar [ERROR] urls[3] = file:/home/username/.m2/repository/com/google/code/findbugs/jsr305/2.0.1/jsr305-2.0.1.jar [ERROR] urls[4] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-incremental/1.0/maven-shared-incremental-1.0.jar [ERROR] urls[5] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar [ERROR] urls[6] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-api/2.0/plexus-compiler-api-2.0.jar [ERROR] urls[7] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-manager/2.0/plexus-compiler-manager-2.0.jar [ERROR] urls[8] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-javac/2.0/plexus-compiler-javac-2.0.jar [ERROR] urls[9] = file:/home/username/.m2/repository/org/apache/xbean/xbean-reflect/3.4/xbean-reflect-3.4.jar [ERROR] urls[10] = file:/home/username/.m2/repository/log4j/log4j/1.2.12/log4j-1.2.12.jar [ERROR] urls[11] = file:/home/username/.m2/repository/commons-logging/commons-logging-api/1.1/commons-logging-api-1.1.jar [ERROR] urls[12] = file:/home/username/.m2/repository/com/google/collections/google-collections/1.0/google-collections-1.0.jar [ERROR] urls[13] = file:/home/username/.m2/repository/junit/junit/3.8.2/junit-3.8.2.jar [ERROR] Number of foreign imports: 1 [ERROR] import: Entry[import from realm ClassRealm[maven.api, parent: null]] [ERROR] [ERROR] -----------------------------------------------------: org.codehaus.plexus.util.cli.CommandLineException [ERROR] -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginContainerException 

使用-X添加:

  Apache Maven 3.0.4 (r1232337; 2012-01-17 09:44:56+0100) Maven home: /home/username/workspaces/projectX43/test/EMBEDDED Java version: 1.7.0_21, vendor: Oracle Corporation Java home: /usr/lib/jvm/java-7-openjdk/jre Default locale: de_DE, platform encoding: UTF-8 OS name: "linux", version: "3.0.0-32-generic", arch: "amd64", family: "unix" SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. [INFO] Error stacktraces are turned on. [DEBUG] Reading global settings from EMBEDDED/conf/settings.xml [DEBUG] Reading user settings from /home/username/.m2/settings.xml [DEBUG] Using local repository at /home/username/.m2/repository [DEBUG] Using manager EnhancedLocalRepositoryManager with priority 10 for /home/username/.m2/repository [INFO] Scanning for projects... [..... (Limit of 30000 would be exceeded so I left it out) .....] [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile) on project test: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile failed: A required class was missing while executing org.apache.maven.plugins:maven-compiler-plugin:3.0:compile: org/codehaus/plexus/util/cli/CommandLineException [ERROR] ----------------------------------------------------- [ERROR] realm = plugin>org.apache.maven.plugins:maven-compiler-plugin:3.0 [ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy [ERROR] urls[0] = file:/home/username/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/3.0/maven-compiler-plugin-3.0.jar [ERROR] urls[1] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar [ERROR] urls[2] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.1/maven-shared-utils-0.1.jar [ERROR] urls[3] = file:/home/username/.m2/repository/com/google/code/findbugs/jsr305/2.0.1/jsr305-2.0.1.jar [ERROR] urls[4] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-incremental/1.0/maven-shared-incremental-1.0.jar [ERROR] urls[5] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar [ERROR] urls[6] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-api/2.0/plexus-compiler-api-2.0.jar [ERROR] urls[7] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-manager/2.0/plexus-compiler-manager-2.0.jar [ERROR] urls[8] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-javac/2.0/plexus-compiler-javac-2.0.jar [ERROR] urls[9] = file:/home/username/.m2/repository/org/apache/xbean/xbean-reflect/3.4/xbean-reflect-3.4.jar [ERROR] urls[10] = file:/home/username/.m2/repository/log4j/log4j/1.2.12/log4j-1.2.12.jar [ERROR] urls[11] = file:/home/username/.m2/repository/commons-logging/commons-logging-api/1.1/commons-logging-api-1.1.jar [ERROR] urls[12] = file:/home/username/.m2/repository/com/google/collections/google-collections/1.0/google-collections-1.0.jar [ERROR] urls[13] = file:/home/username/.m2/repository/junit/junit/3.8.2/junit-3.8.2.jar [ERROR] Number of foreign imports: 1 [ERROR] import: Entry[import from realm ClassRealm[maven.api, parent: null]] [ERROR] [ERROR] -----------------------------------------------------: org.codehaus.plexus.util.cli.CommandLineException [ERROR] -> [Help 1] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile) on project test: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile failed: A required class was missing while executing org.apache.maven.plugins:maven-compiler-plugin:3.0:compile: org/codehaus/plexus/util/cli/CommandLineException ----------------------------------------------------- realm = plugin>org.apache.maven.plugins:maven-compiler-plugin:3.0 strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy urls[0] = file:/home/username/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/3.0/maven-compiler-plugin-3.0.jar urls[1] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar urls[2] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.1/maven-shared-utils-0.1.jar urls[3] = file:/home/username/.m2/repository/com/google/code/findbugs/jsr305/2.0.1/jsr305-2.0.1.jar urls[4] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-incremental/1.0/maven-shared-incremental-1.0.jar urls[5] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar urls[6] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-api/2.0/plexus-compiler-api-2.0.jar urls[7] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-manager/2.0/plexus-compiler-manager-2.0.jar urls[8] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-javac/2.0/plexus-compiler-javac-2.0.jar urls[9] = file:/home/username/.m2/repository/org/apache/xbean/xbean-reflect/3.4/xbean-reflect-3.4.jar urls[10] = file:/home/username/.m2/repository/log4j/log4j/1.2.12/log4j-1.2.12.jar urls[11] = file:/home/username/.m2/repository/commons-logging/commons-logging-api/1.1/commons-logging-api-1.1.jar urls[12] = file:/home/username/.m2/repository/com/google/collections/google-collections/1.0/google-collections-1.0.jar urls[13] = file:/home/username/.m2/repository/junit/junit/3.8.2/junit-3.8.2.jar Number of foreign imports: 1 import: Entry[import from realm ClassRealm[maven.api, parent: null]] ----------------------------------------------------- at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59) at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196) at org.apache.maven.cli.MavenCli.main(MavenCli.java:141) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352) Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile failed: A required class was missing while executing org.apache.maven.plugins:maven-compiler-plugin:3.0:compile: org/codehaus/plexus/util/cli/CommandLineException ----------------------------------------------------- realm = plugin>org.apache.maven.plugins:maven-compiler-plugin:3.0 strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy urls[0] = file:/home/username/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/3.0/maven-compiler-plugin-3.0.jar urls[1] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar urls[2] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.1/maven-shared-utils-0.1.jar urls[3] = file:/home/username/.m2/repository/com/google/code/findbugs/jsr305/2.0.1/jsr305-2.0.1.jar urls[4] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-incremental/1.0/maven-shared-incremental-1.0.jar urls[5] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar urls[6] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-api/2.0/plexus-compiler-api-2.0.jar urls[7] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-manager/2.0/plexus-compiler-manager-2.0.jar urls[8] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-javac/2.0/plexus-compiler-javac-2.0.jar urls[9] = file:/home/username/.m2/repository/org/apache/xbean/xbean-reflect/3.4/xbean-reflect-3.4.jar urls[10] = file:/home/username/.m2/repository/log4j/log4j/1.2.12/log4j-1.2.12.jar urls[11] = file:/home/username/.m2/repository/commons-logging/commons-logging-api/1.1/commons-logging-api-1.1.jar urls[12] = file:/home/username/.m2/repository/com/google/collections/google-collections/1.0/google-collections-1.0.jar urls[13] = file:/home/username/.m2/repository/junit/junit/3.8.2/junit-3.8.2.jar Number of foreign imports: 1 import: Entry[import from realm ClassRealm[maven.api, parent: null]] ----------------------------------------------------- at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:127) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209) ... 19 more Caused by: org.apache.maven.plugin.PluginContainerException: A required class was missing while executing org.apache.maven.plugins:maven-compiler-plugin:3.0:compile: org/codehaus/plexus/util/cli/CommandLineException ----------------------------------------------------- realm = plugin>org.apache.maven.plugins:maven-compiler-plugin:3.0 strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy urls[0] = file:/home/username/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/3.0/maven-compiler-plugin-3.0.jar urls[1] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar urls[2] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.1/maven-shared-utils-0.1.jar urls[3] = file:/home/username/.m2/repository/com/google/code/findbugs/jsr305/2.0.1/jsr305-2.0.1.jar urls[4] = file:/home/username/.m2/repository/org/apache/maven/shared/maven-shared-incremental/1.0/maven-shared-incremental-1.0.jar urls[5] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar urls[6] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-api/2.0/plexus-compiler-api-2.0.jar urls[7] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-manager/2.0/plexus-compiler-manager-2.0.jar urls[8] = file:/home/username/.m2/repository/org/codehaus/plexus/plexus-compiler-javac/2.0/plexus-compiler-javac-2.0.jar urls[9] = file:/home/username/.m2/repository/org/apache/xbean/xbean-reflect/3.4/xbean-reflect-3.4.jar urls[10] = file:/home/username/.m2/repository/log4j/log4j/1.2.12/log4j-1.2.12.jar urls[11] = file:/home/username/.m2/repository/commons-logging/commons-logging-api/1.1/commons-logging-api-1.1.jar urls[12] = file:/home/username/.m2/repository/com/google/collections/google-collections/1.0/google-collections-1.0.jar urls[13] = file:/home/username/.m2/repository/junit/junit/3.8.2/junit-3.8.2.jar Number of foreign imports: 1 import: Entry[import from realm ClassRealm[maven.api, parent: null]] ----------------------------------------------------- at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:125) ... 20 more Caused by: java.lang.NoClassDefFoundError: org/codehaus/plexus/util/cli/CommandLineException at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2413) at java.lang.Class.getDeclaredConstructors(Class.java:1855) at com.google.inject.spi.InjectionPoint.forConstructorOf(InjectionPoint.java:245) at com.google.inject.internal.ConstructorBindingImpl.create(ConstructorBindingImpl.java:98) at com.google.inject.internal.InjectorImpl.createUninitializedBinding(InjectorImpl.java:629) at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:831) at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:758) at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:255) at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:204) at com.google.inject.internal.InjectorImpl.getProviderOrThrow(InjectorImpl.java:954) at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:987) at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:950) at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1000) at org.sonatype.guice.bean.reflect.AbstractDeferredClass.get(AbstractDeferredClass.java:45) at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:84) at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:52) at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:70) at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:100) at org.sonatype.guice.plexus.lifecycles.PlexusLifecycleManager.onProvision(PlexusLifecycleManager.java:138) at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:108) at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:55) at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:68) at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45) at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46) at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1018) at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40) at com.google.inject.Scopes$1$1.get(Scopes.java:59) at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41) at com.google.inject.internal.InjectorImpl$3$1.call(InjectorImpl.java:965) at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1011) at com.google.inject.internal.InjectorImpl$3.get(InjectorImpl.java:961) at org.sonatype.guice.bean.locators.LazyBeanEntry.getValue(LazyBeanEntry.java:83) at org.sonatype.guice.plexus.locators.LazyPlexusBean.getValue(LazyPlexusBean.java:49) at java.util.AbstractMap.get(AbstractMap.java:182) at org.codehaus.plexus.compiler.manager.DefaultCompilerManager.getCompiler(DefaultCompilerManager.java:54) at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:384) at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:118) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101) ... 20 more Caused by: java.lang.ClassNotFoundException: org.codehaus.plexus.util.cli.CommandLineException at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230) ... 59 more [ERROR] [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginContainerException 

谢谢您的帮助。

我对chronos插件有类似的问题,并通过将plexus-utils依赖项添加到插件来解决它。

   org.codehaus.mojo chronos-jmeter-maven-plugin 1.1.0   org.codehaus.plexus plexus-utils 3.0.15      jmeter     

我没有编译器插件的这个问题,但这可能适用于它。

您应该知道maven-compiler-plugin的“active / current”版本。

请参阅: http : //maven.apache.org/plugins/请注意,今天版本的maven-compiler-plugin是在3.6.1中,这种方式可以更改此值。

将您的maven插件更改为:

  org.apache.maven.plugins maven-compiler-plugin 3.6.1  1.7 1.7   

原因:每次运行maven编译插件时,都会使用Maven中央存储库重新编制索引,因此必须不断更新此版本。

注意:不要包含对“丛”的依赖,这是不必要的。

你只是有一个丢失的jar文件。 这可以通过maven添加以下依赖项(在标记之前的pom.xml文件中)轻松添加:

      org.codehaus.plexus    plexus    3.3.1   

我得到了这个,因为C盘上的内存很少……清理干净并允许依赖关系成功下载:)

我得到了这个,因为maven存储库文件已被锁定! 我不能操作这个文件! 但我不知道为什么? 然后我删除了存储库文件,And – > Maven ReImport。 这行得通! 这可能对你有所帮助!

也许这可能会有所帮助… java.lang.NoClassDefFoundError:org / codehaus / plexus / util / cli / CommandLineException#420

 Delete ~/.m2 local folder completely.