Sorry if Forgelin isn't supported here, there was nowhere else to ask. If you post Java, IDEA automatically converts it into Kotlin, so it doesn't matter if you don't know Kotlin. Anyway, I set up a ClientProxy and ServerProxy that implement an IProxy interface I made. I added a public static val (like a constant in Java) of type IProxy? with an @SidedProxy annotation with the exact package names of both proxies. Both the proxies are public. When I run, I get an error saying this:

 

java.lang.IllegalAccessException: Class net.minecraftforge.fml.common.ProxyInjector can not access a member of class com.fieldbox.upgrademod.ClientProxy with modifiers "private"

 

I don't understand. The object ClientProxy is public, so it shouldn't be throwing this error, right?

 

Proxy code in mod file (Kotlin)

@JvmStatic
@SidedProxy(clientSide = "com.fieldbox.upgrademod.ClientProxy", serverSide = "com.fieldbox.upgrademod.ServerProxy")
public val proxy : IProxy? = null

 

Proxy code in mod file (Java, but a bit rusty)

@SidedProxyclientSide = "com.fieldbox.upgrademod.ClientProxy", serverSide = "com.fieldbox.upgrademod.ServerProxy"public static final IProxy 

7 minutes ago, fieldbox said:

The object ClientProxy is public, so it shouldn't be throwing this error, right?

Apparently it’s not public. You probably don’t need a proxy at all and can get rid of it completely btw.

@diesieben07 knows plenty about kotlin

Ah, ok. There is a public keyword in there, but I'll just delete the proxy I guess. I'm assuming world.isRemote will be fine for any side related code?

Oh, I never knew about lateinit, thanks for clearing that up.

3 minutes ago, fieldbox said:

I'm assuming world.isRemote will be fine for any side related code?

Any logical side related code. Proxies deal with physical sides. The replacement for Proxies in 99.5% or cases is Sided EventSubscribers.

Still not working with lateinit var and no nullable type, I'll just delete it.