how to open an old minecraft jar in new launcher

Troubleshooting I can't find the Fabric API download button. Then download the latest (top-most) version of Fabric API for that Minecraft version. That way you don't have to make your own profile.Īnd select your Minecraft version at the top right. Changing this can sometimes cause problems.

Leave 'Select Install Location' at the default value.

If you want to use snapshots, make sure that 'Show snapshots' is checked first.

In the Fabric installer, select your Minecraft version and press 'Install'. Unsurprisingly, this means you don't have Java installed. When I try to run the Fabric installer, I get a message saying I don't have Java.

If you can't find Java at all, you need to install Java first.

Depending on your system, you will see either 'Java(TM) Platform SE binary', 'OpenJDK Platform binary', or both.

If you don't see Java in the list, select 'Choose another app' at the bottom.

There is a setting in Windows called 'Choose default apps by file type' that lets you change this.Īlternatively, you can also use 'right click' > 'open with' to open the file with Java, like so: jar files with that other program instead of using Java. This means your computer is configured to open. When I try to run the Fabric installer, WinRAR / 7-Zip / etc. (The author of the video cannot help you with Wurst-related questions. This can happen when you don't have Java installed.

When I try to run the Fabric installer, nothing happens. You can either ignore the warning or use the Universal/.jar version of the Fabric installer, which does not have this problem.

exe version), but it's almost certainly a false positive. This can happen with the Fabric installer 'for Windows' (the. Troubleshooting My antivirus is detecting the Fabric installer as malicious.

How to open an old minecraft jar in new launcher