Sodium & Iris Crash: NoSuchMethodError in GlShader.<init>

What it looks like in the log

java.lang.NoSuchMethodError: 'void net.caffeinemc.mods.sodium.client.gl.shader.GlShader.<init>(net.caffeinemc.mods.sodium.client.gl.shader.ShaderType,

How to fix it

1. Open your instance's mods folder and check the exact versions of both Sodium and Iris Shaders.
2. If you are using an alpha or beta version of Sodium, replace it with the latest stable release for your Minecraft version from Modrinth or CurseForge.
3. If you are already on a stable Sodium release, update Iris Shaders to the newest version built for that specific Sodium release.
4. Verify that other rendering or Sodium add-on mods (such as Sable, Sodium Extra, or Continuity) are also on versions compatible with your chosen Sodium release.

Check your own logDownload sodium on 9Minecraft