Installer.jar Instant

Ensure your Java version matches the software requirements (e.g., Minecraft 1.21 requires Java 21 ). 2. How to Run the Installer

In many cases, simply double-clicking the .jar file will launch the installer. Installer.jar

--installServer : Used by Minecraft Forge/Fabric to set up server files. Ensure your Java version matches the software requirements

There are two primary ways to launch an installer JAR depending on your operating system and needs: This is the standard method for most desktop users. Installer.jar

Necessary for servers without a monitor (headless) or for advanced configuration. Open your terminal or command prompt.