Getting the “couldn’t load launcher core from minecraft” error when you try to open the minecraft launcher?
You are not alone, this is a pretty common error and fixing it can be simple or complicated, depending on the cause.
Sometimes it’s as easy as updating your drivers, while in some cases you may need to reinstall or run a complex diagnostic tool.
In any case, it’s important to know what causes this error and how to fix it. And in this article we will be covering just that, so you can get back to playing Minecraft as soon as possible.
Let’s get troubleshooting!
Causes And Fixes For Couldn’t Load Launcher Core Error
Couldn’t load launcher core from minecraft is a common error message that can have a number of causes, but luckily there are also a number of ways to fix it.
Below are some of the possible causes and their respective fixes for the error:
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Corrupted Launcher File
The most probable cause for the error could be that your “launcher_profiles.json” file located in the “.minecraft” folder is corrupt.
To fix this, you can delete the file and restart the Minecraft Launcher.
Antivirus Blocking The Launcher
It is also possible that your antivirus or firewall is blocking the Minecraft Launcher from running.
In this case, you will need to add an exception for the Minecraft launcher in your antivirus or firewall settings.
Check if you have the latest version of the Minecraft Launcher. If it’s outdated, that can also be a reason why you get the “couldn’t load launcher core” error.
This is an easy and obvious fix, just update the launcher to the latest version.
Outdated Or Missing Java Files
Another very probable cause of the error is outdated or missing Java files.
The Java Runtime Environment (JRE) is needed to run Java-based games like Minecraft, and must be installed on your computer.
Without the JRE, Minecraft will not be able to launch.
If you’re not sure whether or not you have the JRE installed, the first step is to check. You can do this by opening the Control Panel on Windows, or by opening the System Preferences on a Mac.
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Once you’re in the respective control panel, look for a Java icon. If you see one, that means the JRE is installed. If you don’t see an icon for Java, that means it’s not installed and you’ll need to download and install it before you can run Minecraft.
System Infected By Malware
Another common cause of the “couldn’t load launcher core” error is malware or viruses. If your computer is infected with malware, it can prevent Minecraft from launching properly.
In some cases, the malware may even delete important game files, which can also lead to this error.
If you suspect that your computer is infected with malware, you should run a virus scan as soon as possible. Many antivirus programs have free trials that you can use to scan your computer for malware.
Once you’ve found and removed any malware, try launching Minecraft again.
Corrupt Game Files
The error can also be caused by corrupt game files. If your Minecraft installation is corrupt, it can prevent the game from launching.
Fortunately, you can usually fix corrupt game files by simply uninstalling and then re-installing the game.
To uninstall Minecraft, open the Control Panel on Windows or the System Preferences on a Mac. Then, find the Minecraft entry and click “Uninstall.” Once the game is uninstalled, download it again from the official website and install it.
This should fix any corrupt game files and allow you to open the game successfully.
Mod Or Resource Pack Issues
If you’re still having trouble after trying all of the above, it’s possible that your problem is being caused by a mod or resource pack.
If you’re using any mods or resource packs, try removing them and launching Minecraft again. In most cases, this will fix the problem.
Finally, if you’re still seeing the “couldn’t load launcher core” error, it’s possible that your problem is being caused by a faulty Minecraft installation.
If this is the case, the best course of action is to uninstall the game and then reinstall it from scratch.
This will ensure that all of the game files are correctly installed and should allow you to launch the game successfully.
If we can’t find the cause, we could try an alternative minecraft launcher like this one here.
As you saw, there are quite a few reasons why you might be facing the error. Try troubleshooting the easier ones first like checking for updates and corrupted files and move on to the next like antivirus stuff and resource pack removal.
If all these don’t work, you can try reinstalling and that should definitely fix it.
Hope you found this guide useful and it actually solved your issues. If you’re still having trouble loading the launcher, comment below and I’ll see if there’s anything I could do to help you out.