Question

当我尝试运行mvn clean install -P embedded时，我收到以下错误我之前从未与Maven合作，实际上很难理解它试图告诉我的内容。有人可以帮我解决吗？

    [FATAL ERROR] org.apache.maven.plugin.clean.CleanMojo#execute() caused a linkage error (java.lang.NoClassDefFoundError) and may be out-of-date. Check the realms:
[FATAL ERROR] Plugin realm = app0.child-container[org.apache.maven.plugins:maven-clean-plugin:2.2]
urls[0] = file:/Users/andrejcek/.m2/repository/org/apache/maven/plugins/maven-clean-plugin/2.2/maven-clean-plugin-2.2.jar
urls[1] = file:/Users/andrejcek/.m2/repository/org/codehaus/plexus/plexus-utils/1.1/plexus-utils-1.1.jar
urls[2] = file:/Users/andrejcek/.m2/repository/org/apache/maven/shared/file-management/1.2/file-management-1.2.jar
urls[3] = file:/Users/andrejcek/.m2/repository/org/apache/maven/shared/maven-shared-io/1.1/maven-shared-io-1.1.jar
[FATAL ERROR] Container realm = plexus.core
urls[0] = file:/usr/share/maven/lib/maven-2.2.0-uber.jar
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] org/apache/maven/shared/io/logging/MessageSink
org.apache.maven.shared.io.logging.MessageSink
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.NoClassDefFoundError: org/apache/maven/shared/io/logging/MessageSink
    at org.apache.maven.plugin.clean.CleanMojo.execute(CleanMojo.java:171)
    at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:483)
    at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:678)
    at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:540)
    at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:519)
    at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:371)
    at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:332)
    at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:181)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:356)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:137)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
    at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:41)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
    at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
    at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
    at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: java.lang.ClassNotFoundException: org.apache.maven.shared.io.logging.MessageSink
    at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:315)
    at org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
    at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
    at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:274)
    at org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:250)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:398)
    ... 20 more

Answer 1

我遇到了同样的问题，但后来我找到了非常简单的解决方案。

step1 - 从http://maven.apache.org/download.cgi下载欲望maven文件夹（我已经下载了Maven 2.2.1（Binary tar.gz））

step2 - 提取tar并将文件夹放到您想要的位置（即/ usr / lib /）

step3 - 更新你使用它的maven的路径（在我的例子中是.bashrc）

基本上问题是你的maven已损坏，你需要按照上述步骤解决它。：）

Answer 2

您的Maven安装已损坏。卸载它，重新下载maven，确认md5校验和匹配，安装它并重试。

（Similar problem thread）

编辑：另一种选择是您从已破坏的仓库下载了一些东西。如果重新安装maven无法解决问题，请检查您是否使用了有问题的存储库（最好还在此处报告您配置的pom依赖项）。还有cases like that。

Answer 3

检查您是否正确设置了M2_HOME变量，如installation instructions中所述。

maven 2个问题

3 个答案: