無法在windows中安裝maven

Question

嘗試安裝到Windows中的maven時出現此錯誤。

我曾嘗試是， 我已經設置了環境變量如下：

系統變量：

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

用戶變量::在cmd中

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

ERROR：

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 

我應該怎麼做才能正確配置它？

Answer 1

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

Answer 2

你必須設置M2_HOME變量。按照網址http://www.mkyong.com/maven/how-to-install-maven-in-windows/