net.minecraft.network.play.client.C03PacketPlayer doesnt exist somehow i ddint make the script some1 else made it

[Moin Moin]

idk how to fix it i dont have the src cuz i didnt make it and its obfuscated

[kawaiinekololis]

If you are trying to use the script on Nextgen, it has to be updated to function. C03PacketPlayer named like this only exists on the 1.8.9 forge mappings, so it was created for Legacy.