Ошибка java virtual machine launcher could not open

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 FilesJavajre1.8.0_60libamd6jvm.cfg

I have already verified the integrity of my Path variable, (C:Program FilesJavajdk1.8.0_65bin) 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.

What is ‘Java Virtual Machine Launcher error’ in Windows 10/11?

If you are experiencing ‘Java Virtual Machine Launcher error’ or ‘Could not create the Java Virtual machine’ error while trying to open application that is build around Java in your Windows 10/11 computer, then you are in right place for the solution. Here, you will be guided with easy steps/methods to resolve the error. Let’s starts the discussion.

‘Java Virtual Machine’: Java is one of the most popular programming languages that can run on variety of different operating systems and devices. This programming language is used for web development, mobile applications, desktop applications and server-side programming. Java programming language generates JVM (Java Virtual Machine) that executes codes written in Java.

However, several users reported that they faced ‘Java Virtual Machine Launcher error’ issue on their Windows 10 computer while they tried to launch the application based on Java or that is build around Java. This error is occurred usually if something goes wrong with data or code that is being processed by JVM (Java Virtual Machine). This issue indicates your Windows computer is unable to read or understand the code. One possible reason behind this error is outdated Windows OS or current Windows OS version is not compatible with Java installed in your computer. Let’s take a look at error message.

“Error: Could not create Java Virtual Machine

Error: A fatal expectation has occurred. Program will exit”

‘Java Virtual Machine Launcher error’ issue is occurred possibly when you trying to open application like Minecraft or other apps based of Java programming language in your computer, that hasn’t enabled Java to run as Administrator. You should make sure you are running the app with administrator permission or you have enabled Java to run as Administrator. You can configure your Java program to run as Administrator in order to fix the issue.

This issue can be occurred if there is some issue with Java program installation. Corruption in files or component relating to Java program could be reason behind the issue. You can uninstall and then reinstall Java program in order to fix the issue. Also, this error is occurred when Java Virtual Machine (JVM) needs more RAM than its current allocation. You can increase the allocation in order to fix the issue. Let’s go for the solution.

How to fix Java Virtual Machine Launcher error in Windows 10/11?

Method 1: Fix Java Virtual Machine Launcher error with ‘PC Repair Tool’

‘PC Repair Tool’ is easy & quick way to find and fix BSOD errors, DLL errors, EXE errors, problems with programs/applications, malware or viruses issues, system files or registry issues and other system issues with just few clicks. You can get this tool through button/link below.

⇓ Get PC Repair Tool

Method 2: Configure or set Java program to run with Administrator permission

One possible way to fix the issue is to allow Java program to run with administrator permission. This way, you can fix the issue with all Java based application that was causing ‘Java Virtual Machine Launcher error’.

Step 1: Type ‘Java’ in ‘Windows Search Box’ or ‘Cortana’ and right-click on ‘Configure Java’ from results appear, select ‘Open File Location’

Step 2: Once you are inside the correct folder location, find and right-click on Java executable, and select ‘Properties’

Step 3: In ‘Properties’ window, click on ‘Compatibility’ tab, tick ‘Run this program as an administrator’ checkbox under ‘settings’ section and then hit ‘Apply’ and ‘OK’ button to save the changes

Step 4: Once done, retry opening the application based on Java that was causing error and check if the issue is resolved.

Method 3: Uninstall Java program and then reinstall it

This issue can also be occurred due to corrupted files and components relating to Java Program in your computer. You can uninstall and then reinstall Java in your computer in order to fix the issue.

Step 1: Open ‘Control Panel’ in Windows 10 and go to ‘Uninstall a Program > Programs & Features’

Step 2: Find and select ‘Java’ program, and select ‘Uninstall’ option. Follow on-screen instructions to finish uninstall process and after that, restart your computer.

Step 3: After restart, open your browser and visit ‘Java Official page’ or visit ‘https://www.java.com/en/download/manual.jsp’ page and download latest version of Java according to your Windows OS version like Windows 32-bit or 64-bit. You can download both 32-bit and 64-bit version of Java if you don’t know which one you need

Step 4: Once downloaded, find and double-click on ‘Downloaded Java Setup file’ file and follow on-screen instructions to finish installation.

Step 5: Once installed, retry running the application based on Java and check if the error is resolved.

Method 4: Expand the allocated RAM for Java in Windows 10

You can increase RAM allocation for Java in your computer in order to fix the issue.

Step 1: Press ‘Windows +R’ keys on keyboard, type ‘sysdm.cpl’ in the opened ‘Run’ dialog box and hit ‘Ok’ button to open ‘System Properties’ window

Step 2: In the opened ‘System Properties’ window, click on ‘Advanced’ tab and click on ‘Environment Variables…’ button at bottom

Step 3: Go to ‘System Variables’ section and click on ‘New’. Fill the available field in following way.

‘Variable Name –    _JAVA_OPTIONS

Variable Value –    –Xmx512M’

Step 4: Finally, hit ‘Ok’ and then hit ‘Apply’ and ‘OK’ on ‘System Properties’ window to save the changes.

Step 5: Once done, restart your computer to see the changes and retry opening the application based on Java and check if the issue is resolved.

Method 4: Run System scan for malware or viruses with some powerful antivirus

Sometimes, this type of error is occurred due to malware or viruses attack in computer. You can run system scan with Windows 10 build-in Windows Defender antivirus in computer in order to remove all threats in computer. You can also try some powerful third-party antivirus software for this purpose. Check if malware removal step resolves the issue.

Method 5: Edit Startup programs in Windows 10

You can also try to fix the issue by editing your Windows Startup programs. Let’s try.

Step 1: Press ‘Windows + R’ keys on keyboard, type ‘msconfig’ in the opened ‘Run’ dialog box and hit ‘OK’ button to open ‘System Configuration’ window

Step 2: In ‘System Configuration’ window, click on ‘Startup’ tab, find ‘WJView.exe’ and ‘Javaw.exe’ startup item from lists, and deselect their checkboxes if checked

Step 3: Finally, hit ‘Apply’ and ‘OK’ to save the changes and restart your computer. After restart, retry opening the program/application based on Java and check if the issue is resolved.

Conclusion

I am sure this post helped you on How to fix Java Virtual Machine Launcher error in Windows 10 with several easy steps/methods. You can read & follow our instructions to do so. That’s all. For any suggestions or queries, please write on comment box below.

Java is a versatile, machine-independent programming language that is used to write a variety of different applications. Unlike most other applications, you can run java applications equally well in Windows, Mac, or Linux, provided you have installed Java Virtual Machine (JVM) in your system. However, if JVM breaks, then none of your java applications run.

One recent impact having a broken JVM launcher was felt by users of Minecraft. A recent update brought new features, but also required Java 16 to set up a server. Those with older version of JVM were greeted with a Java Native Interface (JNI) error.

There are other examples where a malfunctioning JVM launcher caused an application to not work, and it could probably happen again in the future. We have this article prepared, so that you can be prepared when your JVM launcher has an error.

What Causes Java Virtual Machine Launcher Errors

You can somewhat diagnose what is wrong with your JVM and attempt a corresponding fix based upon the type of error message that you see when you JVM does not work.

Reinstall/Update Java

If the error message you see is “Java Virtual Machine Launcher Could Not Find The Main Class,” then Java has been incorrectly installed or Java installation has been corrupted in your machine.

JNI errors can be caused by outdated version of Java.

To fix this, you need to reinstall Java Runtime Environment.

Windows 10

1. Launch Settings (Press Win + I), then navigate to Apps.
2. Scroll to find Java and select Uninstall.
3. Download and install the latest version of Java.
4. Restart your computer.

Windows 11

1. Launch Settings, navigate to Apps > Apps & features.
2. Scroll to find Java.
3. Click on the kebab button to its right, then select Uninstall.
4. Download and install the latest version of Java.
5. Restart the computer.

Increase System Memory for Java

You will get a “Could not create the Java virtual machine” error if Java is trying to use more memory than has been assigned to it.

You can fix this by increasing the amount of memory allotted to Java.

Note: The variable value -Xmx512M sets memory available to Java to 512 MB. You can change this value depending upon how much memory your Java was utilizing before. For instance, setting this to -Xmx1024M assigns 1024 MB system memory to Java.

Run as Administrator

Sometimes JVM errors can occur because you do not have sufficient user privilege to run the application.

You can fix this by configuring Java to run as administrator.

1. Press Win + E to launch Windows Explorer, then navigate to Java installation folder. (Usually located at “…/Program Files(x86)/Common Files/Oracle/Java/javapath”)
2. Find java.exe and right-click on it.
3. Select Properties.
4. Switch to Compatibility tab and put a tick mark on Run this program as an administrator.
   
5. Click Apply, then click OK.

Set File Type Association to Java

If your error message is “Unable to access Jar file,” then one of the reasons for this issue is that your jar file association is not set to Java.

Windows 10

1. Launch Settings (Press Win + I)
2. Navigate to Apps > Default apps.
3. Click on Default apps by file type.
4. Scroll to find .jar from the list of file types.
5. Click on the currently set default application next to it.
6. Click on Java(TM) Platform SE binary.
   
7. Close Default apps setting.

Windows 11

1. Press Win + I to launch Settings.
2. Navigate to Apps > Default apps.
3. Enter .jar file type in the box under Set a default for a file type of link type.
4. Click on the application that is currently selected to open .jar files, then click on Java under Other options.
5. Close settings.

Frequently Asked Questions

What is Java Exception Error?

And exception is an unexpected event which occurs during program execution. Java has methods to catch and handle exceptions.

An application that has implemented exception handling methods will create an exception object when it runs into an exception during execution.

The object contains information such as name and description of the exception, as well as the state of the application when the exception was caught.

What is the Maximum Java Heap Size for Windows?

The maximum allowable heap size for Java in Windows is 16 EB (exabyte). For 32 bit of Windows, maximum heap size is 4 GB.

How Do I Install Java on Mac?

Please follow the steps below if you want to install Java on your MacOS:

1. Download jre-8u65-macosx-x64.pkg from the official site.
2. Launch the file by double clicking on it.
3. Double click the package icon to launch Install Wizard.
4. Follow on-screen instructions.

Please note that you need a macbook with Intel processor to install Java. Oracle does not officially support Java on M1/M2 processors yet.