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How to Fix Internal Exception: java.io.ioexception in Minecraft


Technology has aided the development of contemporary games and the renovation of older ones. Gaming used to be solely for fun, but technological advancements have broadened users’ perspectives on gaming.

Presently, one of the best-selling advanced and exciting games, Minecraft, has earned people’s attention. Minecraft is a goal-oriented video game that allows players to exercise their creative minds towards achieving a goal. Due to the game’s numerous exciting components, many people, especially children, have recently been captivated by it.

However, as intriguing as the game is, several issues may arise while accessing it. This is true for all developed applications or software like Minecraft. The Minecraft video game was created by Mojang using the Java programming language. As a result, errors are unavoidable as several circumstances could trigger them.

The occurrence of ‘java.io.ioexception’ does not indicate a difficult or permanent issue with the game. Nonetheless, encountering an error while immersed in a fun game like Minecraft can be aggravating. However, this article discusses easy steps to handle java.io.ioexception’ issues in Minecraft games.

Possible Causes of java.io.ioexception in Minecraft

In the programming language, java.io.ioexception is a separate error that implies input or output exception. This error can be caused by one of the following factors:

  1. Network reception
  2. Lack of storage
  3. Launching termination by special applications like Anti-Virus.
  4. Attempts to read/write a file fail due to a lack of permission.
  5. Accessing a deleted file

Troubleshooting java.io.ioexception

The strategy for troubleshooting will be determined by how mild or difficult the error is. As a result, troubleshooting java.io.ioexception will be discussed in two categories:

  1. Basic Troubleshooting
  2. Advanced Troubleshooting

Basic Troubleshooting

  1. Reboot Your Computer

This is basic or minor troubleshooting because it does not require excessive technical knowledge. In this case, the rebooting process can be done by using the computer's power button. Rebooting forces the connection to be established, fixing the java.io.ioexception if the problem is minor.

2. Turn Your Router on and Off

A router is the common source of internet connection between computer networks. However, when java.io.ioexception occurs in Minecraft, rebooting the router might resolve the issue and resume the game.

3. Restart the Minecraft

You can fix the java.io.ioexception by updating Minecraft. To do so, launch Minecraft and go to the login page and click "Options." Then select "Force update" and "Apply." Wait a minute for the installation to finish, and the problem should be resolved.

4. Check the Available Server

If you're accessing Minecraft with a VPN and the java.io.ioexception appears, the issue could be with your connected server. The server may be overloaded, causing your connection to slow down. Additionally, your chosen server may be geo-restricted. Change the server in this situation.

5. Check your computer for any necessary updates

Restarting the computer works because it restarts all the previously functioning services while simultaneously turning off all of the unnecessary processes. So, restart your computer and observe whether the problem persists.

As previously stated, basic troubleshooting is intended for minor java.io.ioexception errors in Minecraft. Attempting all or any of the solutions mentioned above should resolve the issue. However, if the problem persists, it is recommended that you go through the advanced troubleshooting guide listed below.

Advanced Troubleshooting

This approach is often needed when the basics don’t yield a positive result. This means the error is more technical than expected but might not demand high technical skills.

So, let’s dive into some crucial advanced approaches to fix java.io.ioexception in Minecraft.

  1. Connect Your Router’s DNS to the Google DNS Servers if Possible

  1. For PC users

Having network connection problems on the router or network provider is a common cause of java.io.ioexception in Minecraft. This can happen because the DNS (Domain Name System) is currently unable to decode the IP address of the Minecraft server.

Consequently, the only way to fix this problem when spotted is to switch to a different browser. In this context, the Google DNS server can be used as an escape route in resolving this.

So, how is it done?

It’s pretty simple! Start by selecting the Windows button in the task bar’s bottom-left corner. Type “Network connections into the search area, and then choose “View Network Connections” from the menu that appears.

Screenshot of View Network Connections

Then, select the router you’re using—select properties from the context menu of the router by right-clicking on it. Choose Internet Protocol Version 4(TCP/IPv4) in the pop-up window, then click the Properties button.

Screenshot of Network Connection Properties

A preferred DNS server can be set to Google’s DNS server, which is “8.8.8.8.” Then, under the Alternative DNS server, type “8.8.4.4.” and click OK.

B. For MacOS Users, Go to System Preferences on the Apple Icon

After entering the Google DNS information, click OK, then Apply. Restart your browser and go to Minecraft. The issue with java.10.10exception should now be rectified.

  1. Delete the Old Minecraft and Install a New Version

It’s also crucial to keep an eye on Minecraft’s vital launch. However, if problems persist, remove the game and reinstall it. Connect it to the server after the installation is complete to see if it fixed the problem.

  1. Disable Software Like Antivirus on Your Computer

Antivirus software and firewalls are essential for protecting your devices, but they can occasionally cause network connectivity troubles.

Go to your control panel and navigate to Update & Security > Windows Security > Virus & Threat Protection > Manage Settings for Windows users.

You can find the settings in System Preferences > Security & Privacy > Firewall for Mac users.

After you’ve deactivated your firewall, try connecting the game to your browser. If this solves the problem, you might want to try a different antivirus product or reconfigure the settings of your current one. In any case, don’t forget to reactivate your firewall when you’re finished.

Conclusively, getting a “Java.io.ioexception” error can be both frustrating and alarming. While there are many possible causes for this problem, the good news is that most of them have straightforward fixes.