Are you getting a “Cannot find Minecraft 1.20” error when you’re downloading OptiFine?
Here’s the second error message, “You must download and start Minecraft 1.20 once in the official launcher”.
OptiFine is a powerful mod for Minecraft that provides various enhancements and optimizations to improve gameplay.
It has features like FPS boost, reduces lag spikes, and creates smoother gameplay.
OptiFine also supports HD textures, shaders, dynamic lights, and variable render distance.
It allows for configurable smooth lighting, and performance optimization options like VSync and Advanced OpenGL.
OptiFine 1.20 fixed the debug screen with a custom font and GUI items with shaders.
In this guide, you’ll learn how to fix “Cannot find Minecraft 1.20” and “You must download and start Minecraft 1.20” in OptiFine.
How to Fix “Cannot find Minecraft 1.20” in OptiFine
To fix “Cannot find Minecraft 1.20” in OptiFine, you need to update and launch Minecraft 1.20 once.
After you’ve launched Minecraft 1.20 once, run the Optifine Executable Jar File, and select “Install” to install OptiFine.
Here’s how to fix “Cannot find Minecraft 1.20” in OptiFine:
- Open the Minecraft Launcher, select the latest release (1.20) to update it, and select “Play”.
- After you’ve updated Minecraft to 1.20 and launched it once, go to https://optifine.net/downloads, and download OptiFine.
- Minecraft 1.20 > Preview versions > Download > Skip the ad > Download.
- Run the “.jar” file and select “Install” to install Optifine.
- Launch Minecraft and click on the version dropdown box.
- Select “OptiFine” and select “Play” to play Minecraft!
TDLR: If you get an error message (cannot find Minecraft 1.20), while downloading OptiFine, make sure to update and launch the 1.20 version of Minecraft first before downloading it.
Tip #2: If you can’t find “OptiFine” in the Minecraft Launcher, select the “Installations” tab, and select “Play” next to “OptiFine”.
Further reading
How to Download OptiFine 1.20 in Minecraft