无法在Windows中安装maven

Question

尝试在Windows中安装maven时，我收到此错误。

我试过的是， 我已将环境变量设置如下：

系统变量：

MAVEN_HOME :: C:\Users\hari\Downloads\apache-maven-3.3.9

用户变量::

PATH : C:\Users\HARI\Downloads\apache-maven-3.3.9\bin;
JAVA_HOME : C:\Program Files\Java\jdk1.8.0_101\jre

cmd中的错误：

C:\Users\hari>mvn -version

Exception in thread "main" java.lang.NoClassDefFoundError: org/codehaus/plexus/l
ogging/LoggerManager

        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
        at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
        at java.lang.Class.getMethod0(Class.java:3018)
        at java.lang.Class.getMethod(Class.java:1784)
        at org.codehaus.plexus.classworlds.launcher.Launcher.getEnhancedMainMethod(Launcher.java:172)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:268)
        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: java.lang.ClassNotFoundException: org.codehaus.plexus.logging.LoggerManager

        at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)


        ... 10 more

我应该怎样做才能正确配置？

Answer 1

Set M2_HOME = <PATH To Maven>
Set M2=%M2_HOME%\bin
Add M2 to Path variable
PATH = ;%M2%

Answer 2

你必须设置M2_HOME变量。关注网址http://www.mkyong.com/maven/how-to-install-maven-in-windows/