Eclipse 4.2 Juno doesn't find JRE

Question

I downloaded Eclipse Juno and I am trying to run it for the first time. System is Win 7 Home Premium and I also downloaded JDK. I am getting the following error:

A Java Runtime Environment (JRE) or Java Development Kit (JDK) must be available in order to run Eclipse. No Java virtual machine was found after searching the following locations: C:\Program Files\eclipse\jre\bin\javaw.exe javaw.exe in your current PATH

The javaw.exe file it needs is in... C:\Program Files\Java\jre7\bin\javaw.exe

How do I fix this problem? Thanks in advance

Check out http://stackoverflow.com/questions/2030434/eclipse-no-java-jre-jdk-no-virtual-machine — Trinimon, May 12 '13 at 19:38
I downloaded jdk-7u21-windows-x64 It looks like it downloaded successfully. — user2375575, May 12 '13 at 19:39

Jason · Answer 1 · 2013-05-12T19:52:20.517

4

" A Java Runtime Environment (JRE) or Java Development Kit (JDK) must be available in order to run Eclipse. No Java virtual machine was found after searching the following locations: C:\Program Files\eclipse\jre\bin\javaw.exe javaw.exe in your current PATH "

You need to install Java JDK: http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

and then edit your path location:

Right-click on computer->properties->advanced system settings->advanced->environment variables:

enter image description here

Add C:\Program Files\Java\<JDK version>\bin to your PATH variable.

Also add JAVA_HOME as a system variable. I have my JAVA_HOME set to C:\Program Files\Java\jdk1.7.0_03.

When you are done, start cmd, type java, and hit enter. If you get an error that it can not be found then java is not correctly installed.

edited May 12 '13 at 19:52

answered May 12 '13 at 19:38

Jason

13,563
15
74
125

should I put it in under System variables with "Variable Name" = javaw and then the path? – user2375575 May 12 '13 at 19:49
System variables, yes. There should already be a path variable there. You can append by adding a semi-colon and then "C:\Program Files\Java\\bin". You should also create a new variable: "JAVA_HOME". My JAVA_HOME is set to `C:\Program Files\Java\jdk1.7.0_03` – Jason May 12 '13 at 19:51
note: you'll have to restart every program that uses that variable, so if cmd is running, shut it down and restart it after making the variable change. – Jason May 12 '13 at 19:53
1

Jason Thanks, You are the bomb... God bless you. bye – user2375575 May 12 '13 at 20:01
hmmm nevermind. you may not have enough reputation. normally there is a check mark underneath the upvote/downvote – Jason May 12 '13 at 20:05

score 0 · Answer 2 · answered May 12 '13 at 23:29

You just need to have a Java environment installed in one of the locations Eclipse looks. For Eclipse you do NOT need the full JDK.

It is enough to install a Java Runtime Environment, e.g. from java.com. This still allows you to develop against any JDK - this is just about the JVM that Eclipse needs for itself.

Eclipse 4.2 Juno doesn't find JRE

2 Answers2