Eclipse: Could not find Java 2 Runtime Environment

Question

I just installed Eclipse 3.5. Before I could install the Android Plugin I needed to install a Java jdk, which I did. After restart Im not able to start Eclipse anymore, because I receive the following error:

Error: could not finde Java 2 Runtime Environment

The weired thing is, that now I cant even open my other Eclipse Installations, that I use for PHP Programming. Any suggestions?

Update:

This is my eclipse.ini:

-startup
plugins/org.eclipse.equinox.launcher_1.0.201.R35x_v20090715.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.0.200.v20090519
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
-vmargs
-Xms40m
-Xmx256m

check your eclipse.ini file , there should be misconfiguration — jmj, Dec 08 '10 at 14:19
You might need to set your environment's PATH to include the 'bin' directory of your JDK install. — wkl, Dec 08 '10 at 14:20

score 6 · Answer 1 · edited Apr 25 '13 at 10:10

6

You can explicitely tell your eclipse session which jdk/jre you want it to start with adding the following in your eclipse.ini:

-vm
c:/your/jre/bin/javaw.exe

For more info on how to startup your eclipse refer here

edited Apr 25 '13 at 10:10

Cephalopod

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answered Dec 08 '10 at 14:48

dimitrisli

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score 5 · Answer 2 · edited Aug 18 '11 at 10:38

5

I had a similar problem, with exception that Java was installed successfully. Once I added c:/my-path-to-java/jre/bin to PATH (system environment variable), Eclipse started successfully.

edited Aug 18 '11 at 10:38

Bo Persson

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answered Aug 17 '11 at 20:19

makbeta

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I like this better than changing the eclipse.ini file – JLund Sep 02 '13 at 09:21

score 3 · Answer 3 · answered Mar 27 '13 at 11:21

3

Change the PATH environment variable from something like

...;%SystemRoot%\System32;...;C:\Program Files\Java\jdk1.7.0_17\bin;...

to something like

...;C:\Program Files\Java\jdk1.7.0_17\bin;...;%SystemRoot%\System32;...

answered Mar 27 '13 at 11:21

palacsint

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score 2 · Answer 4 · answered Dec 08 '10 at 14:21

2

Check your path variable from Computer's System Properties Environment Variables JAVA_HOME to ocorrect path to your jdk installation

answered Dec 08 '10 at 14:21

Yusuf K.

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I created the variable JAVA_HOME with the value "C:\Programme\java\jdk1.6.0_23" but it didnt work. Do I have to reference a specific file within that folder? – Pascal Klein Dec 08 '10 at 14:33
@paskster Maybe adding JAVA_HOME wants to restarting computer. Otherwise I think installing JDK again will solve your problem. – Yusuf K. Dec 08 '10 at 14:37

score 1 · Answer 5 · answered Nov 11 '12 at 18:04

I had the same problem when I recently installed JDK 7 Update 9. My eclipse did not open and when I run "java -version" from CMD, it did not work either. I had PATH variable set to the correct bin directory.

Anyways, eventually when I set JAVA_HOME to the new installation directory, eclipse started fine. Not sure what is the problem with JDK 7 Update 9.

score 1 · Answer 6 · answered Dec 08 '10 at 15:20

1

Wonder if the Java install might be corrupt. Can you run the following on the Run prompt and paste what you get in code tags:

dir /d /s "%JAVA_HOME%" > "%HOMEPATH%\java2.txt" && notepad "%HOMEPATH%\java2.txt"

answered Dec 08 '10 at 15:20

Chris Dennett

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score 1 · Answer 7 · answered Dec 08 '10 at 15:41

It makes sense that your PHP eclipse won't start either. Eclipse runs on java itself. Probably it cannot find the JRE.

so I see two possibilities:

The JRE is corrupt and you should reinstall it
Eclipse is getting confused by the 2 jre (unlikely to me) and you need to point it to the right one (as suggested by Dimistrisli).

score 1 · Answer 8 · answered Nov 03 '11 at 08:40

I had the same issue. Eclipse (3.7) worked just fine for a while with JDK 6, and then I installed JRE 5 (please don't ask me why)

This eclipse wiki page, which seems up to date, states that:

If a JVM is installed in the eclipse/jre directory, Eclipse will use it; otherwise the launcher will consult the eclipse.ini file and the system path variable. Eclipse DOES NOT consult the JAVA_HOME environment variable

And indeed, I did not change JAVA_HOME so that couldn't be it. However, at the bottom of the same wiki page, someone added:

A comment on the JVM search order (on Windows) - My testing (Windows 7, Eclipse 3.4.1) shows that Eclipse also looks for a JVM in the registry, in my case HKLM\Software\Wow6432Node\JavaSoft\Java Runtime Environment

So I found the mentioned registry entry, which now had the value of "1.5" and changed it to "1.6", then restarted my PC (windows 7), and voila - Eclipse went back alive.

I agree that adding "-vm" might fix this, although it didn't seem to work for me (maybe I didn't add it in the right place/format). But IMO, the registry fix was the better one in my case. After restarting my computer and seeing Eclipse was back to normal, I uninstalled JRE 5 (through "Add or remove programs") just to tie up loose ends.

score 1 · Answer 9 · answered Dec 03 '11 at 00:38

1

In my case installing the most recent JRE worked well: http://www.oracle.com/technetwork/java/javase/overview/index.html

answered Dec 03 '11 at 00:38

Moss

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score 0 · Answer 10 · answered Nov 16 '15 at 16:58

The simple solution that worked for me, since other resolution required admin privilege is executing the below command from command prompt

eclipse -vm C:\Java\jdk1.7.0_72\bin\javaw

Also, to make the eclipse shortcut work by editing the shortcut.Append -vm C:\Java\jdk1.7.0_72\bin\javaw in the target section

score 0 · Answer 11 · answered Dec 08 '10 at 14:21

0

Make sure everything is setup correctly under "installed JREs" under the Eclipse preferences.

answered Dec 08 '10 at 14:21

jzd

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Eclipse: Could not find Java 2 Runtime Environment

11 Answers11