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The Minecraft version 21W19A update has made it impossible for players to launch the game if they receive a JNI error. This problem can occur on your PC due to previous installations or corrupted files in broken path variables. In Minecraft, here’s how to fix a “JNI problem”. As many fans know, the Minecraft Caves & Cliffs update was recently released. This long-awaited update had numerous new features, including new mobs, blocks, items, and achievements. Unlike previous versions, the Minecraft server software now relies on the latest version of Java (Java 16) to function properly. The most common cause of a JNI error when trying to set up a Minecraft server is that the version of Java installed on the machine is not up to date.
There’s nothing more frustrating than trying to get Minecraft to work when you just want to play. When Minecraft just isn’t working, you’ll often get an error message that will give you a clue as to what’s wrong. Here is a quick fix to get Minecraft working again after receiving a JNI error. The most common reason you see a “A JNI error has occurred” message in Minecraft is that your Java software is running an older version. This happens because the developers constantly update Minecraft, the game is also updated with newer versions of Java. When you have an older version of Java installed, your game is no longer compatible with the software you installed. In this article, we will teach you how to fix JNI error in Minecraft.
How to fix the JNI error that has occurred in Minecraft
Install the latest version of JDK
Before proceeding, make sure all instances of Minecraft and the Minecraft launcher are closed. Then follow these steps.
- Go to Oracle’s JDK download page and download the x64 installer for the latest version of the JDK (18.0.1.1 at the time of writing).
- Install the downloaded installer once the download is complete.
- Open the Minecraft launcher, go to Minecraft: Java Edition and click the Installations tab.
- Click on the installation you want to fix.
- Click More Options.
- Click Browse below the Java executable and navigate to the folder where you installed Java in step 1.
- Click Save to save your changes and run the game again.
Fix JDK path
If you have Java installed correctly, but the game can’t use it, it’s likely that your Java path is broken. Follow these steps to resolve the issue.
- Press Windows Key + R to open the Run prompt. Type sysdm.cpl and press enter.
- Go to the Advanced tab and click Environment Variables…
- Select Path under System Variables and click the Edit button.
- Find and remove any paths that mention Java.
- Restart your PC and launch the game again now. The “A JNI error occurred in Minecraft” issue should be resolved.
Installing Java on Linux
- If you’re on Linux, enter the following commands one at a time in the terminal before launching the game again.
- sudo apt-get update
- sudo apt install openjdk-17-jdk
Final words: Fix ‘A JNI Error Has Occurred’ in Minecraft
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