Importing doesn't work with javac

[goldenfire64]

When I try to compile a simple mod that I have, every single one of the mods supposedly doesn't exist.

 

Here's the code:

package cMod;

import net.minecraft.client.Minecraft;
import net.minecraft.init.Blocks;
import net.minecraftforge.client.event.ClientChatReceivedEvent;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.fml.common.FMLCommonHandler;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

import org.apache.logging.log4j.Logger;

@Mod(modid = ExampleMod.MODID, name = ExampleMod.NAME, version = ExampleMod.VERSION)
public class ExampleMod
{
    public static final String MODID = "examplemod";
    public static final String NAME = "Example Mod";
    public static final String VERSION = "1.0";

    private static Logger logger;

    @EventHandler
    public void preInit(FMLPreInitializationEvent event)
    {
        logger = event.getModLog();
    }
    
    @EventHandler
    public void init(FMLInitializationEvent event)
    {
        FMLCommonHandler.instance().bus().register(this);
        MinecraftForge.EVENT_BUS.register(this);
    }
    
    @SubscribeEvent
    public void onChat(ClientChatReceivedEvent event) {
        String message = event.getMessage().getUnformattedText();
            if(message.contains("hi")) {
                     Minecraft.getMinecraft().toggleFullscreen();
            }
    }
    
}

 

And here's the error:

 

 

Edited June 27, 2019 by goldenfire64
Added all of the code, fixed spelling errors, changed image.

[loordgek]

you must use gradlew.build

[goldenfire64]

I tried that, and there was an error:

 

In all the websites that I check, 11.0.1 works for them.

[goldenfire64]

If this helps, I ran it with --stacktrace:

 

 

[DaemonUmbra]

Why were you trying to compile manually with javac?

Your current version of Gradle(or the gradle wrapper) is incompatible with Java 11, try Java 8 as that is what Minecraft targets.

[goldenfire64]

I downloaded it and ran gradlew build. It worked! Thanks so much!

Edited June 28, 2019 by goldenfire64