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Getting error while trying to install maven on windows.

What I have tried is, I have set the Environment variables as follows:

System variable::

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

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

C:\Users\hari>mvn -version

Error:

        Exception in thread "main" java.lang.NoClassDefFoundError: 
        org/codehaus/plexus/logging/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

what should I do to configure it rightly?

  • Which eclipse version you have installed on your windows machine? – Bharat Mane Apr 12 '17 at 12:09
  • I cannot see Java in your PATH. Is it mentioned? – zishan paya Apr 12 '17 at 12:10
  • Using Version: Neon.3 Release (4.6.3) – Hari Apr 12 '17 at 12:23
  • Voting to close this question as it is not about testing, but about software development build tools. Better asked and probably already answered on stackoverflow.com – Niels van Reijmersdal Apr 12 '17 at 12:25
  • Also installing in your download directory doesn't really look like a valid long term strategy. – Niels van Reijmersdal Apr 12 '17 at 12:26
3

Steps to install Maven:

  • Install JDK and add path of JAVA_HOME
  • Download Apache Maven
  • Add M2_HOME and MAVEN_HOME
  • Add To PATH

Modify your System variables: Add both M2_HOME, JAVA_HOME and MAVEN_HOME variables in the Windows environment, and point it to your Maven folder.

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

JAVA_HOME : C:\Program Files\Java\jdk1.8.0_101

Take the path up to the JDK only.

Same as MAVEN_HOME add similar path of M2_HOME.

M2_HOME or MAVEN_HOME: Maven document said add M2_HOME only, but some programs still reference Maven folder with MAVEN_HOME, so, it’s safer to add both.

Add To PATH:

Update PATH variable, append Maven bin folder – %M2_HOME%\bin, so that you can run the Maven’s command everywhere.

Still, there is any error refer this link.

0

MAVEN_HOME should probably be M2_HOME: https://stackoverflow.com/questions/23274864/cant-run-maven

As MAVEN_HOME is for Maven version 1: https://stackoverflow.com/questions/17136324/what-is-the-difference-between-m2-home-and-maven-home

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