A JNI Error Has Occurred in Minecraft: Solved

by Narendra

A JNI Error Has Occurred in Minecraft: As you may already know, the most powerful version of Minecraft is the Java Edition. Using the best Minecraft mods, you can change, upgrade, and change it however you want, both offline and online.

But that also makes it more likely to make mistakes. The JNI errors are one of the most common and worst kinds of errors. Thanks to a couple of easy fixes, this Java error in Minecraft is easy to fix and doesn’t take long at all. So, let’s see how to fix Minecraft’s “A JNI error has occurred” message.

A JNI Error Has Occurred in Mincraft

We have already talked about why the JNI error happens when setting up a Minecraft server or opening the Minecraft launcher on your PC. However, you can use the table below to go straight to the solution and fix your game.

Why does Minecraft have the JNI error?

For Minecraft Java and all of its features to work, you need Java libraries on your computer. So, if you use a Minecraft server, mods, or a feature that your system’s library doesn’t support, you might get an error in the game. These kinds of mistakes are called JNI, or Java Native Interface, errors.

Most of the time, these errors happen when your Java files are too new or your device’s Java version is too old. When the installation path for the Java files is broken, these errors can also happen. In other words, you just need to make sure your Java file and the Java libraries on your system are up-to-date and work with the version of Minecraft mod or server you have installed. If you do that, the problem will be fixed right away.

A JNI Error Has Occurred in Mincraft: Solutions

1. Install Latest Java Version (Windows, Mac, and Linux)

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

1. Go to Oracle’s official website and look in the “Latest” section for your system’s operating system. We’ll show you how to install Java on Windows, but the steps are the same for Linux and macOS.

2. Then, click on the download link for the Java installer file to get it. You might need to make sure that the installer works with a Linux-based OS.

3. Once the download is done, open the setup file and follow the step-by-step instructions to install.

4. You can change the folder where the new version of Java is going to be installed. We don’t recommend doing that, though, because many games and programs look for Java in the default directory.

5. Click “Close” to leave the installer when the installation is done. Then, you can run Java files and features, like Minecraft Java Edition, without getting any JNI errors.

2. Reset Java Path to Fix Minecraft JNI Error

If installing the latest update for Minecraft doesn’t fix JNI errors, your path variable for Java might be out of date or wrong. In that case, here’s how to reset Java’s path variable:

1. First, use the keyboard shortcut Win + R in Windows 11 to open the run dialog box. Here, type “sysdm.cpl” and hit the Enter key. This will open your device’s system properties.

2. Go to the “Advanced” tab in the system properties window and click the “Environment Variables” button.

3. Next, look for the “Path” variable in the “System variables” section. Then, click the button that says “Edit.”

4. Lastly, click “Delete” to get rid of the broken Java variable paths and then restart your PC. If you aren’t sure which variable to delete, you can delete them all and reinstall Java using the steps in the previous section.

3. Remove Broken System Path Variables for Java

If the first method doesn’t work, the “a JNI error has happened” error in Minecraft is caused by a broken system path variable for Java.

In this case, the problem can be fixed by going to the System Properties screen and changing the environment variables so that the Java environment variables are removed.

Here is how to do that:

Step 1: Press Win + R to bring up the Run box. Then type sysdm.cpl and hit the Enter key.

Step 2: In the System Properties window, go to the Advanced tab and click on the Environment Variables button.

Step 3: Once you’re in the System Variables window, click the Edit button next to Path in the System Variables section.

Step 4: Look for Java’s environment variables in the next window. Then click on it and click Delete.

Install Java on Linux to Fix Minecraft A JNI Errors

To manually install Jave on your Linux system, open the terminal app and use the following commands:

sudo apt-get update

sudo apt install openjdk-18-jdk

Remember that you can only use one command at a time for them to work. But make sure that the number “18” is changed to the number of the most recent version of Java. You can find it by doing a quick search.

Wrapping up: JNI Error Has Occurred in Minecraft

JNI errors are less common these days because the game has been updated. But even if you find one by accident, you now know how to fix JNI errors in Minecraft. And it will definitely help you make your own Minecraft Java server. You can also use the method to reduce errors when using the best Minecraft mods. So, if you’re still getting JNI errors or similar ones in Minecraft, feel free to get in touch.