Luis_ST

Did you call ModEntityTypes#register in the constructor of your main mod class? EntityRenderersEvent.RegisterRenderers and EntityAttributeCreationEvent are MOD Bus Events, you need to move this Events into a client only Mod Bus EventHandler class.

Minecraft Launcher -> Installations -> Edit the Forge Profile your are playing on -> More Options -> JVM Arguments -> Edit the -Xmx Argument

Problem with Alex's Mobs. Make sure you are using the latest version. If the Mod is already up to date, talk to the Mod author.

Replace the 1 in Level#setBlock with a 3 to update the Block to the client. The Fire is placed on server but not correctly on client.

@AbdAllah70Please do not post in random threads, create next time your own thread.

CurseForge Launcher -> Settings -> Java Settings -> Allocated Memory

Looks like a problem with Illuminations.

@EHARDY666Please post in this Thread, do not use the thread of other people/problems. You can use https://imgur.com/ to upload images.

Please post in your thread a Screenshot of the error you get.

This is possible up to a point in the debugger since it uses hot-swapping (Intellij im not sure but I guess, Eclipse yes). You cannot modify the class signature (remove/add fields, method, etc), while in the debugger. But you can modify the body of a method (very useful to change parameter/ constants). Your IDE should show your a warning if something could not be hot swapped.

Please post debug.log from the logs folder.

You can find the solution on your own, use the features of your IDE. You can find all client Events in net.minecraftforge.client.event.*.

Which servers did you connect to and what error message did you get? Please post debug.log from the logs folder.

Did you looked how the FlintAndSteelItem place the Fire? Please post the full updated code not only a code snipe. Please post the code you use to register your Item.

Refer to the Optifine downloads page regarding compatibility with Forge.

If you have issues with adfoc.us you can use the direct download. You find it at the bottom of the download page (Show all versions). Then click on the i for the direct download.

Where did you download Forge? If you have issues with adfoc.us you can use the direct download. You find it at the bottom of the download page (Show all versions). Then click on the i for the direct download.

You can use the Spark Mod to find which Mod cause this laggs. Run the Spark profiler via /spark profiler a few Minutes, then stop the profiler via /spark profiler --stop. The Spark Mod will upload the profiler result on the Spark viewer, please post the link you get after stopping the profiler.

If you do not know how to call a method on a object please learn basic java before modding. The EntityType.Builder#build requires a String as parameter, you need to pass in the entity name with out your mod i

Use /spark profiler to start the profiler and /spark profiler --stop to stop it.

You need to call EntityType.Builder#build to create the actual EntityType from the Builder.

You need to return InteractionResult#sidedSuccess with Level#isClientSide.

You can use the spark Mod this find out which Mod(s) cause this lags. The Mod will upload the collect informations on the spark Viewer, please post the link to this file.

You can use the spark Mod this find out which Mod(s) cause this lag spikes. The Mod will upload the collect informations on the spark Viewer, please post the link to this file.

Please post debug.log from the logs folder. If you using CurseForge you need to enable the debug.log in the settings.