[1.15] Caused by: java.lang.IllegalStateException: Failed to resolve consumer event type: net.minecraftforge.fml.network.simple.

[KidKoderMod033109]

Hi,
When I try to run my mod I get a 

Caused by: java.lang.IllegalStateException: Failed to resolve consumer event type: net.minecraftforge.fml.network.simple.SimpleChannel$$Lambda$2237/0x00000008013e0c40@722d3ddb

error. I have no clue what this means/how to fix it.

THanks in advance,

KId KOder

[imacatlolol]

This is usually caused by using the wrong java version; use java 8.

[KidKoderMod033109]

How do I switch in IntelliJ?

[imacatlolol]

Open the project structure and change the project SDK

[KidKoderMod033109]

Odd, I says I'm on Java 8

[imacatlolol]

I might be wrong then. Show the full log

[KidKoderMod033109]

Sorry, just checked I don't have Java 8 on my computer