diff --git a/core/src/main/java/com/seibel/distanthorizons/core/Initializer.java b/core/src/main/java/com/seibel/distanthorizons/core/Initializer.java
index e28837e3b..a580e8d2a 100644
--- a/core/src/main/java/com/seibel/distanthorizons/core/Initializer.java
+++ b/core/src/main/java/com/seibel/distanthorizons/core/Initializer.java
@@ -1,5 +1,6 @@
 package com.seibel.distanthorizons.core;
 
+import com.seibel.distanthorizons.coreapi.ModInfo;
 import com.seibel.distanthorizons.core.world.DhApiWorldProxy;
 import com.seibel.distanthorizons.core.api.external.methods.config.DhApiConfig;
 import com.seibel.distanthorizons.core.api.external.methods.data.DhApiTerrainDataRepo;
@@ -8,12 +9,36 @@ import com.seibel.distanthorizons.core.dataObjects.fullData.loader.HighDetailInc
 import com.seibel.distanthorizons.api.DhApi;
 import com.seibel.distanthorizons.core.dataObjects.fullData.loader.LowDetailIncompleteFullDataSourceLoader;
 import com.seibel.distanthorizons.core.render.DhApiRenderProxy;
+import io.netty.buffer.ByteBuf;
+import net.jpountz.lz4.LZ4Compressor;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 /** Handles first time Core setup. */
 public class Initializer
 {
+	private static final Logger LOGGER = LogManager.getLogger(ModInfo.NAME+"-"+Initializer.class.getSimpleName());
+	
     public static void init()
 	{
+		// confirm that all referenced libraries are available to use
+		try
+		{
+			// if any library isn't present in the jar its class
+			// will throw an error (not an exception)
+			Class<?> compressor = LZ4Compressor.class;
+			Class<?> networking = ByteBuf.class;
+			Class<?> toml = com.electronwill.nightconfig.core.Config.class;
+			Class<?> flatlaf = com.formdev.flatlaf.FlatDarculaLaf.class;
+		}
+		catch (NoClassDefFoundError e)
+		{
+			LOGGER.fatal("Critical programmer error: One or more libraries aren't present. Error: ["+e.getMessage()+"].");
+			throw e;
+		}
+		
+		
+		
         CompleteFullDataSourceLoader unused2 = new CompleteFullDataSourceLoader(); // Auto register into the loader system
         HighDetailIncompleteFullDataSourceLoader unused3 = new HighDetailIncompleteFullDataSourceLoader(); // Auto register
         LowDetailIncompleteFullDataSourceLoader unused4 = new LowDetailIncompleteFullDataSourceLoader(); // Auto register