How to Fix “A JNI Error Has Occurred” in Minecraft on All Versions

As you might already know,Minecraft Java Editionis the most powerful version of the game. You can customize it, upgrade it, and modify it using the best Minecraft mods as per your desires – offline and online alike. But, that also makes it vulnerable to a variety of errors. One of the most common and dreadful series of errors is the JNI errors. Fortunately, it’s super easy to solve this Java error affecting Minecraft in no time, thanks to a couple of easy fixes. So, let’s check out how to fix “A JNI error has occurred” in Minecraft.

Fix JNI Error in Minecraft (2022)

Fix JNI Error in Minecraft (2022)

We have first covered why the JNI error occurs while setting up a Minecraft server or opening the Minecraft launcher on your PC. However, you can use the table below to directly skip to the solution and fix your game.

What Causes the JNI Error in Minecraft

Minecraft Java and all its features depend upon the Java libraries on your computer to function properly. So, if you are using a Minecraft server, mods, or a feature that the library in your system doesn’t support, the game might end up facing an error. Such errors fall into the class of JNI orJava Native Interfaceerrors.

These errors usually occur when the Java files are too new or the Java version of your device is outdated. Sometimes these errors also occur when the installation path of the Java files is broken. In other words, you just need to make sure yourJava file and your system’s Java libraries are up to date and compatiblewith the version of Minecraft mod or server you have installed. Doing so will immediately fix the problem.

How to Fix JNI Error in Minecraft

There are four ways to remove the JNI errors in Minecraft Java Edition. So let’s first explain what these methods are and then learn how to fix them:

As you might have guessed, the second option to fix JNI errors in Minecraft is the easiest and most reliable one. You don’t need to do any manual research and only have to update your system’s Java version to fix the error. Here’s how to do it:

  1. First, go to Oracle’sofficial websiteand look for your system’s OS under the latest section. We are installing Java for Windows, but you can use the same steps for Linux and macOS.

  2. Then, download theJava installer fileby clicking on its download link. You might have to check for compatibility of the installer on a Linux-based OS.

  3. Once the download is complete, open the setup file and follow the step-by-step installation instructions.

  4. You can change the folder’s location where you are installing the new version of Java. But we suggest you do not do that as many games and software look for Java in the default directory.

  5. When the installation is complete, click the “Close” button to exit the installer. Then, you can run your Java files and features, including Minecraft Java Edition, without any JNI errors.

If installing the latest update doesn’t fix JNI errors in Minecraft, your path variable for Java might be outdated or incorrect. In that case, follow these steps to reset the path variable of Java:

  1. First, use theWin Key + RWindows 11 keyboard shortcutto open the run dialog box. Here, type “sysdm.cpl” and press theEnterkey. This will open the system properties of your device.

  2. In the system properties window, go to the“Advanced” taband click the“Environment Variables”button.

  3. Next, look under the“System variables” sectionand select the“Path” variable. Then, click on the “Edit”button.

  4. Finally, use the “Delete” button to remove the corrupted Java variable paths andrestart your PC. If you are not sure about which variable to delete, you can delete all of them and reinstall Java using the steps in the previous section.

To manually install Jave on your Linux operating system, open theterminal appand use the following commands:

sudo apt-get update

sudo apt install openjdk-18-jdk

Remember to useone command at a timefor them to function properly. But make sure to replace the digit “18” with the latest version of Java at the moment. You can do a quick search to find it.

You can run Minecraft or any other software without any JNI errors if you have the latest version of Java, and they are not affected by any previous versions of Java installed on your system. But if you want, you can uninstall them anyways to save up some space and be sure that Minecraft uses the latest installation. Here’s how.

  1. First, press the Windows key and search for Control Panel. Click to open theControl Panelfrom the search results.

  2. Then, go to the “Uninstall a program” option under the “Programs” section.

  3. Here, you can find all versions of Java on your system. You can click on them tocheck their version numberand double-click to uninstall it.

Solve “JNI Error Has Occurred” in Minecraft

Solve “JNI Error Has Occurred” in Minecraft

Thanks to newer versions of the game, JNI errors are uncommon nowadays. But even if you somehow stumble upon one, now you have the power to resolve JNI errors in Minecraft. And it’s bound to help you while trying tomake your ownMinecraft Java server. Other than that, you can also use the method to reduce errors while you use thebest Minecraft mods. With that said, if you still have JNI or similar errors in Minecraft, please feel free to reach out. You can drop your queries in the comments section, and someone from our team will help you out.

Udayveer Singh

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