Unable to install Maven on Windows JAVA HOME is set to an invalid directory

Question

I followed the Maven tutorial to the letter but I still can t get Maven installed on Windows   When I run the following in command prompt   E  Documents and Settings zach gt mvn --version   I get    mvn  is not recognized as an internal or external command  operable program or batch file    I navigated to the maven install folder and ran mvn --version and got   E  java resources apache-maven-2 2 0 bin gt mvn --version ERROR  JAVA HOME is set to an invalid directory  JAVA HOME    E  Sun SDK jdk bin  Please set the JAVA HOME variable in your environment to match the location of your Java installation   but when I run java -version I get   java version  1 6 0 14  Java TM  SE Runtime Environment  build 1 6 0 14-b08  Java HotSpot TM  Client VM  build 14 0-b16  mixed mode    So I do have Java installed  Anyone know what the problem is

User · Answer

My situation was a bit different     JAVA HOME was set properly to point to 1 7 Other Maven projects were working building fine with 1 7 features  PATH was set properly  Everything was up-to-date    Still my simple new Maven project was not working  What I noticed was the difference in the logs when I ran mvn clean install  For my older Maven projects  it showed    INFO  --- maven-compiler-plugin 2 3 2 compile  default-compile    oldProject---   But for my new project it showed    INFO  --- maven-compiler-plugin 2 0 2 compile  default-compile    newProject ---   So  I looked at the POM xml and noticed this thing in the old project s POM    lt build gt       lt plugins gt           lt plugin gt               lt groupId gt org apache maven plugins lt  groupId gt               lt artifactId gt maven-compiler-plugin lt  artifactId gt               lt version gt 2 3 2 lt  version gt               lt configuration gt                   lt source gt 1 7 lt  source gt                   lt target gt 1 7 lt  target gt               lt  configuration gt           lt  plugin gt       lt  plugins gt   lt  build gt    Basically  this plugin tells which compiler version to use for compilation  Just added it to the new project s POM xml and things worked    Hope it is useful to someone

User · Answer

I am using Windows 7  the problem I had was simple   I had this for my JAVA HOME environment variable value    C  Program Files Java jdk1 7 0 51     when it wants    C  Program Files Java jdk1 7 0 51    the semi-colon strikes again       This is how I solved this problem  so this should be one possible solution

User · Answer

I ran into this issue with a Grails install   The problem was my JAVA HOME was c  sun jdk  and my PATH has  JAVA HOME bin  I changed it to  JAVA HOME   c  sun jdk  and PATH   JAVA HOME  bin   It worked after that

User · Answer

This seems to be old post but still I wanted to share how this issue got fixed for me   For users  who do not have admin access and when they open a command prompt  it runs under the user privilege  It means  you may have path like C  Users   so when trying C  Users XYZ mvn --version   it actually search the JAVA HOME path from user variables not system variables in Environment Variables   So  In order to fix this  we need to create a environment variable for JAVA HOME in user variables   Hope  this helps someone

User · Answer

The problems are to do with your paths   Make sure that the directory  quot E  java resources apache-maven-2 2 0 bin quot  is on your command search path   Make sure that the JAVA HOME variable refers to the home directory for your Java installation   If you are executing Java from  quot E  Sun SDK jdk bin quot   then the JAVA HOME variable needs to point to  quot E  Sun SDK jdk quot   NB  JAVA HOME should NOT end with  quot  bin quot 1   Make sure that you haven t put a semicolon in the JAVA HOME variable2  NB  JAVA HOME should be a single directory name  not  quot PATH-like quot  list of directory names separated by semicolons    Also note that you could run into problems if you have ignored this advice in the Maven on Windows instructions about spaces in key pathnames    quot Maven  like many cross-platform tools  can encounter problems when there are space characters in important pathnames  quot   quot You need to install the Java SDK  e g  from Oracle s download site   and you should install it to a pathname without spaces  such as c  j2se1 6  quot    quot You need to unpack the Maven distribution  Don t unpack it in the middle of your source code  pick some location  with no spaces in the path   and unpack it there  quot   The simple remedy for this would be to reinstall Java or Maven in a different location so that there isn t a space in the path  1 -      unless you have made an insane choice for the name for your installation location  2 - Apparently a common  quot voodoo quot  solution to Windows path problems is to whack a semicolon on the end   It is not recommended in general  absolutely does not work here

User · Answer

The JDK has switched locations of java exe between 1 6 and 1 7     In my case I found that the JAVA HOME for the JDK had to add the  jre on the end  The mvn bat file is looking for java exe and it looks for it in JAVA HOME bin  Its not there for JDK 1 7  it is in JAVA HOME jre bin  In JDK 1 6 such it IS in JAVA HOME bin   Hope this helps somebody

User · Answer

I had the same issue and none of the above answers fixed it for me because my env variables were all set  I had just reinstalled my Java   What worked was to    go to the C  path to apache-maven-3 0 4 bin and open the mvn bat file  Find the line that looks like this  SET JAVA HOME C  progra 1 java jdk1 7 0 03   Correct it to the right path    I don t know if this is Windows specific  but it might help someone

User · Answer

After lot of failed tried attempts  I found the solution  It was the     at end of JAVA HOME which I always put at end of each new variable I set  So get rid of the     JAVA HOME set it in User Variable also  without the     ofcourse

User · Answer

ERROR  JAVA HOME is set to an invalid directory  JAVA HOME    E  Sun SDK jdk bin  Please set the JAVA HOME variable in your environment to match the location of your Java installation   JAVA HOME should be set to E  Sun SDK jdk   PATH should be set to include  JAVA HOME  bin

User · Answer

Sometimes in Windows whitespaces in paths are not recognized correctly  If you have a path problem and path seems like  c  Program Files       try changing it in an old DOS format like   C  Progra 1      You can use dir  x to check correct syntax  third column   C   gt dir  x             11 01 2008  15 47     lt DIR gt           DOCUME 1     Documents and Settings     01 12 2006  09 10     lt DIR gt           MYPROJ 1     My Projects     21 01 2011  14 08     lt DIR gt           PROGRA 1     Program Files           In my pc JAVA HOME is  and it works    C  Progra 1 Java jdk1 8 0 121   Tested in Windows 10

User · Answer

using windows 10  I was facing issue    then I removed JAVA HOME variable completly and just added  JAVA HOME  bin  in PATH then it worked    for mee

User · Answer

I was facing the same issue and just updated the JAVA HOME worked for me   previously it was like this     C  Program Files Java jdk1 6 0 45 bin  Just removed the  bin and it worked for me

User · Answer

you should set JAVA HOME or MAVEN HOME without bin directory for example   - JAVA HOME C  Program Files  x86  Java jdk1 7 0 45  - MAVEN HOME C  Program Files  x86  apache-maven-3 1 1 now  path        MAVEN HOME  bin  JAVA HOME  bin it s work correctly

User · Answer

Running eclipse and also running Maven will require you to store two path variables  one in your jdk1 7 x x x location and also in your jdk1 7 x x  bin   If you are using Windows  when you are in your environment variables  do the following   1  create a USER variable called JAVA HOME   Point this to the location of your JAVA file   For example   C  Program Files Java jdk1 7 0 51   remove the quotes   2  under the PATH  append  JAVA HOME  to the PATH   This will add the file location from step 1 to your PATH   This is good for MAVEN  3  if you are using eclipse you need to have the path point to  C  Program Files Java jdk1 7 0 51 bin    Now append  JAVA HOME  bin to the end of your path     4  your path should look something like this  C  Program Files  x86  Google google appengine  C  Users username AppData Roaming npm  M2   JAVA HOME   JAVA HOME  bin  Notes  the items that are enclosed in   s like  M2  are assigned variables  It looks redundant but necessary   You can confirm that everything works by typing in   java -version  javac -version  mvn -version   Each of those three statements typed in comman prompt should not return errors

User · Answer

JAVA HOME should be like this C  PROGRA 1 Java jdk  Hope this will work

User · Answer

Due to security restrictions at my current place of work I was unable to set enviroment variables on my Windows based PC   My workaround was to copy the mvn bat file from  M2  into C  WINNT and add the following to the top of the batch file    REM Needed as unable to set env variables on my desktop PC   set MAVEN OPTS -Xms256m -Xmx1024m set M2 HOME C  apache-maven-3 0 4 set M2  M2 HOME  bin set JAVA HOME C  Program Files Java jdk1 5 0 15 set PATH  JAVA HOME  bin  M2   PATH    Not the nicest solution but it works  If anybody has any other way or work-around where the standard env vars are not able to be set into the system I d welcome their response

[java] Unable to install Maven on Windows: "JAVA_HOME is set to an invalid directory"

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