Develop Reference

How to fix Eclipse Java Virtual Machine Launcher Error?

So like the title says, Im having an issue with eclipse JVM launcher. Last night, everything was working fine, as far as I know, nothing at all has changed on my pc since then. However, I woke up this morning to find that when I run any of my projects in eclipse I recive this error: Java Virtual Machine Launcher- Error: could not open C:\Program Files\Java\jre1.8.0_60\lib\amd6jvm.cfg
I have already verified the integrity of my Path variable, (C:\Program Files\Java\jdk1.8.0_65\bin) Now at this point, you may notice, my jdk is on version 65. So is my JRE and java installation. I dont understand why eclipse is using jre 60. I also checked the preferences and changed the jre version too 65. No luck. Furthermore, I ran a simple java file without using eclipse through the command line and that ran/compiled just fine. I tried adding the -vm tag (It didn't already exist there) to eclipse.ini and setting it too the jvm but it didn't help. (I than removed it) I have no idea what to do... Please help, I've tried everything I know how to do. Thanks!
EDIT:
My eclipse.ini file below:
-startup
../../../.p2/pool/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar
--launcher.library
../../../.p2/pool/plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.300.v20150602-1417
-product
org.eclipse.epp.package.java.product
--launcher.defaultAction
openFile
--launcher.XXMaxPermSize
256M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
--launcher.appendVmargs
-install
C:/Users/Sanjiv/eclipse/java-mars/eclipse
-vmargs
-Dosgi.requiredJavaVersion=1.7
-Xms256m
-Xmx1024m
-Doomph.update.url=http://download.eclipse.org/oomph/updates/milestone/latest
-Doomph.redirection.index.redirection=index:/->http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/
EDIT 2
I have already tried reinstalling java, eclipse and jdk.

For windows user, if your getting this error:
Java Virtual Machine Launcher- Error: could not open C:\Program
Files\Java\jre1.8.0_60\lib\amd6jvm.cfg
it indicates there is no jre1.8.0_60 version in your system. So you need to set the JRE version which is already there in our system by executing the below command:
Go to cmd prompt
go to the eclipse folder (which you have installed) by executing:
cd eclipse-folder-path
execute below command: eclipse -vm jre_path
ex:
eclipse -vm "C:\Program Files\Java\jdk1.8.0_131\jre\bin\javaw"

Ok, so after a bit of digging, I managed to fix the problem. In eclipse, I went to Windows>Preferences>Java>Installed JREs>Execution Enviorments>JavaSE-1.8>Compatible JREs>jre1.8.0_65(perfect match). I have no idea why or how that changed, (or why it worked) but hey, I'm not complaining. For anyone else with the same issue, first do everything I said in the question body, then try this. It hopefully will work for you too.
EDIT:
I just figured out the cause of the issue as well. I opened the workspace on another computer (my workspace is on a shared drive) running java 1.8.0_60 while this computer is running java 1.8.0_65. Obviously, eclipse had to change the version therefore causing problems.

Eclipse freezes all the time with Ubuntu

I have always avoided using Eclipse because I have had nothing but bad experiences with it. I have used it in three different computers, two with Ubuntu 13 and now in a new laptop with Ubuntu 14.
The problem I got is always the same: Eclipse just freezes, stops working. Back then with Eclipse for Java EE developers with some BPEL plugins it just randomly froze every 20 minutes and I had to force close it and it always messed the configuration.
Now I am using Eclipse for Android apps development. First I tried with standard Eclipse, and not only I got a lot of errors in the code with just creating a new Android project, but the interface would dissapear and come back partially when I hovered the mouse over that gone part, but it also froze when it wanted.
Then at some point just creating a new Android project froze the whole program. I just tried downloading Eclipse Java EE and the same thing happens: creating a new Android app project freezes Eclipse and all I get is a half-created, corrupted project.
I tried maximizing the memory Eclipse used and added a little hack I found around StackOverflow that is supposed to help. But none of these solutions did any good.
Here's my eclipse.ini:
-startup
plugins/org.eclipse.equinox.launcher_1.3.0.v20140415-2008.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.gtk.linux.x86_64_1.1.200.v20140603-1326
-product
org.eclipse.epp.package.jee.product
--launcher.defaultAction
openFile
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
--launcher.appendVmargs
-vmargs
-Dosgi.requiredJavaVersion=1.6
-XX:MaxPermSize=256m
-Xms40m
-Xmx2048m
-Dorg.eclipse.swt.browser.DefaultType=mozilla
Any help?

I've had a similar problem using Eclipse Luna on my ubuntu 12.04, then I found this blog page http://blog.vogella.com/2014/02/21/using-eclipse-luna-on-ubunbu/ which gave me a solution.
Just create a script:
touch eclipse.sh
Fill it with this content:
#!/bin/bash
export SWT_GTK3=0
export UBUNTU_MENUPROXY=0
./eclipse -showlocation
Put this script in your eclipse directory then make it executable
chmod +x eclipse.sh
and finally run it. Hope that helps.

I too had similar problems with eclipse when i switched to kubuntu as eclipse kept crashing...Download the latest version of Eclipse from their site which is https://www.eclipse.org/ (Elipse Luna) and install all the required plugins for android development and it should work smoothly....I guess you're using Eclipse juno.

Deleting the whole content of the workspace, including the .metadata folder solved the problem.

Eclipse becomes unresponsive

I m using Eclipse Indigo. It becomes unresponsive often and finally prompts saying out of memory error and asks me to exit workbench. I increased the Perm Gen space as told in one of the eclipse forums by editing my eclipse.ini file.
Eclipse.ini file contents now is as below,
-startup
plugins/org.eclipse.equinox.launcher_1.2.0.v20110502.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.100.v20110502
-product
org.eclipse.epp.package.jee.product
--launcher.defaultAction
openFile
--launcher.XXMaxPermSize
256M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms40m
-Xmx512m
-XX:MaxPermSize=256m
-vm C:/Java/jdk1.5.0_15
I mostly do Javascript development in eclipse. And I am not able to edit JS file in eclipse.
What can I do to solve this problem?

Currently maximum only 512MB is allowed for eclipse in your ini (-Xmx512m), if you have enough RAM you shall try increasing it to 1GB. More info here http://wiki.eclipse.org/FAQ_How_do_I_increase_the_heap_size_available_to_Eclipse%3F

This problem may be due to
You are using old java version , You need to upgrade it with new version
If your operation system is 64 bit make sure that you are using 64bit java

Java 5 is pretty old. The GC (and overall optimizations) are slow, outdated and patch level 15 means you're missing many critical bug fixes.
The first step would be to install Java 7 (lastest version). Make sure you disable the browser plugin because of the security risks.
Then make sure that Eclipse uses it: Update the path after -vm. Note: If your path contains spaces, use this:
-vm
c:\Program Files\Java\...
(i.e. put the path into a line of it's own).
Lastly, there are two kinds of memory in Java. Heap and PermGen. The error message tells you which one ran out. Use -Xmx to set heap memory and -XX:MaxPermSize= for PermGen. 256m PermGen should be enough but some script languages need more.
With Java 7, enable GC1 which should give you better performance: -XX:+UseG1GC

Problem with increasing Java heap size in Eclipse

I have a problem with error saying ERROR: 'Java heap space'. I followed these instructions to increase the heap size for Eclipse, but it doesn't work. Eclipse seems to be ignoring the given values. My eclipse.ini file looks like this:
-startup
../../../plugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar
--launcher.library
../../../plugins/org.eclipse.equinox.launcher.cocoa.macosx.x86_64_1.1.1.R36x_v20100810
-product
org.eclipse.epp.package.java.product
--launcher.defaultAction
openFile
-showsplash
org.eclipse.platform
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.5
-XstartOnFirstThread
-Dorg.eclipse.swt.internal.carbon.smallFonts
-XX:MaxPermSize=512m
-Xms512m
-Xmx1024m
-Xdock:icon=../Resources/Eclipse.icns
-XstartOnFirstThread
-Dorg.ecli
pse.swt.internal.carbon.smallFonts
The Eclipse version is 3.6.1 running on Mac.
Any ideas what might be wrong?

Are you sure you are configuring parameters for your application execution and not for Eclipse itself?
I usually configure heap size in the Run | Run Configuration dialog.

Try to supply -vmargs directly to Eclipse executable instead of eclipse.ini file.
eclipse -vmargs -Xms512m -Xmx730m
There is a bug in Eclipse, that prevents it from supplying "vmargs" clause of eclipse.ini to JVM.

Humm... -XX:MaxPermSize=512m -Xms512m -Xmx1024m all looking fine. When are you having this error?
At Startup? Can you try switching JVM or downloading the 32 bit version?
When building? Try this guide to give ANT more memory: http://ericfickes.com/2008/10/osx-flexbuilder-java-heap-space-error/
On the App Server / Servlet Container? Increase it's heapsize and permgen space.

Eclipse.ini is for eclipse itself not for running applications. For that use a run configuration to set the start parameters.
One more note: java on MacOSX doesn't have the XX:MaxPermSize or any another XX flags.

To those who get the same error under Eclipse, try to restore cache files (if they were removed accidentally in WAR folder ), this way I solve the same problem under my Eclipse' project. note: I don't think there is a link between Memory allowed to Eclipse and memory for App.

Every Java program crashes with: Failed to create the java virtual machine

From yesterday I receive the message: "Failed to create the java virtual machine" in all Java applications in my Windows machine. Maybe I had a virus or something similar. The only advice I found on other sites is to set the heap size to a lower value. The problem is that I have big applications running that requires at least 1024M heap size. Also my machine has 4GB Ram so I think that it isn't a too low memory problem.

Carefully move the current JDK / JRE installation to one side, and install a fresh copy. If it works, you are done. If not, you have eliminated the possibility that this is a corrupted installation.
Another possibility is that this is really a path problem. Can you run java -version from a command prompt? Can you compile and run a Java "hello world" program from the command line?
Yes, in theory it could have had a virus ... or someone could have tinkered with the installation.

There are a few sites listing that error that differentiate between the heap and perm space. If you're running this through eclipse, try removing the default perm space value in the eclipse.ini:
--launcher.XXMaxPermSize
256m

Sun JVM needs contigous memory block. In windows this could a problem due to dll-rebasing. http://www.drdobbs.com/184416272;jsessionid=HJJRNPUURRDIZQE1GHPCKHWATMY32JVN
Is there any thing else changed?
We got similar problem we installed some new applications(guess it was Citrix) on it. A tool we used was from here http://www.codeproject.com/KB/DLL/RebaseDLLs.aspx (download the code and modify)
If it is left to you, then consider moving to 64bit jvm.

Same problem even i was facing when i first started eclipse..
Just change the value of "–launcher.XXMaxPermSize" in eclipse.ini file..
The eclipse.ini file should now look like this:
-startup
plugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar
–launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.0.v20100503
-product
org.eclipse.epp.package.jee.product
–launcher.defaultAction
openFile
–launcher.XXMaxPermSize
–showsplash
org.eclipse.platform
–launcher.XXMaxPermSize
256m
–launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms40m
-Xmx512m

Did you try to reinstall Java? Maybe also update to latest version.

It is because Eclipse cannot find the path of javaw.exe
Just edit "eclipse.ini" file, adding this path:
Open the file and attach following sentences (replacing with your own path if different):
-vm
C:\Program Files\Java\jdk1.7.0_03\bin\javaw.exe
Sample:
-startup
plugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.1.R36x_v20100810
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
-vm
C:\Program Files\Java\jdk1.7.0_03\bin\javaw.exe
-vmargs
-Xms40m
-Xmx384m

Changing the before file into:
"-vm C:\Program Files\Java\jdk1.7.0_03\bin\javaw.exe"
solves the problem mentioned earlier

First I had tried to make changes in eclipse.ini file as there was told here, but that did not help.
I simply deleted this .ini file, it helped and Eclipse launched.