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Block.Properties.create(Material.GLASS) .sound(SoundType.GLASS);

ObfuscationReflectionHelper. It also has an advantage of you only needing to provide it with an SRG name.

1. Review Java. 2. Check out online documentations to familiarize yourself with the new naming (optional). 3. Fix your errors by reading the errors. They should tell you exactly what you should do, like "XXX is not a method in the parent class" means the method XXX does not exists anymore, and thus you should not be trying to override it. Or even better... Check out other people's example code! Yay! Linked below is an excellent tutorial on modding in 1.12.2: https://github.com/TheGreyGhost/MinecraftByExample/tree/master/

1. Please, check your syntax. I spotted at least 3 syntax errors from a quick glance. 2. When your IDE gives you an error, you should read the error and fix the error properly instead of simply removing @Override. The Override annotation is giving an error because the method being overridden does not exists. Removing the @Override will fix the compile-time error, but meanwhile will make the method useless. 3. Things change. The method and field names in 1.8 do not necessarily exist in 1.12.2. An example would be TileEntity#worldObj (1.8), which is changed to TileEntity#world in 1.12.2. Again, use your IDE. 4. Stop registering your items inside the constructor. Initialize and register them in the appropriate event. My suggestion would be: 1. Review Java. You need to get the basic syntaxes right. 2. Names change between versions. You should use your IDE to figure out the names for methods and fields in 1.12.2. 3. Sentences like "Line xxx is giving an error" is not specific. You need to read the error, which is trying to tell you what is wrong.

The word is "ingot".

I'm 90% sure its the other way round

1. MCreator is terrible. Learn Java. Getting started is not exactly that hard, and the process is very rewarding. 2. Read my favorite StackOverflow post: https://stackoverflow.com/questions/245062/whats-the-difference-between-javascript-and-java

Keeping MCreator-generated code in private to stay secure.........................................

Welcome to the world kiddo! You need to provide knowledge to gain it! Geez, what a dumpster fire of a thread....

If I may, OP, you will have a very hard time getting any sort of help if you keep being stubborn about getting people to view your code. Frankly, nobody here is interested to steal your code, nobody wants to plagiarize any functions, or anything like that. By refusing to show us an entire code base so that we, as helpers are not able to view it, you limit your ability to get help by a lot. It makes threads extremely messy and random when you post small snippets, especially considering you aren't posting enough code for us to help without seeing more in the first place.

My opinion: Learn Java and do it properly.

The easiest way is not always the best way, if you want to mod, please learn to do it the right way.