Using Intellij IDEA for Mod-Development with ForgeGradle

[richard 0]

I've now got this set up on a couple of computers, and have had for a few months, but now I need to update and I had a lot of trouble getting it to update forge. These are the steps I needed to take to make it work:

 

1. grabbed the latest version of forge and extracted the build.gradle to compare to my own (I've made local changes for dependencies) and updated the minecraft:version to "1.10.2-12.18.3.2185" and minecraft:mappings to "snapshot_20161111" to the newest ones.

2. run clearCache and setupDecompWorkspace

3. hit the refresh button in the gradle panel in IntelliJ - without that last step it doesn't pick up the newer version.

 

 

[DavidSullivan 0]

Good tutorial. Thanks you.

funny I'm using the newest forge download MDK for 1.11.2 but the project is strickly using 1.11

even if I change my ModInfo.Version to 1.11.2 the environment is still 1.11

Is this ok?

 

I have a basic mod setup in eclipse and loading without errors.

Showing my log text in the console for preInit, init and postInit

all working and doing nothing.

 

Good start.

 

Now I'm wondering whats next. What is my next move? I'm reading other posts but finding nothing for 1.11 or newer.

 

 

[ViperZeroOne 0]

Great tutorial, but why is this not in the ForgeGradle section?  Would be a lot of help over there I believe.

 

What is my next move? I'm reading other posts but finding nothing for 1.11 or newer.

 

Yea, I decided to take on a pretty heavy mod idea for my first 1.10 mod and I'm wandering around doing the same thing.  Tons of 1.7.10 tutorials out there but can't find anything anywhere for 1.10+ that goes beyond the basics.

 

That said, if you're stuck on the basics MrCrayfish did a good tutorial series, even though he uses eclipse instead of Intellij IDEA.  He starts out working with 1.9 but there's virtually no difference in the code when he later changes the tutorial over to 1.10+ ... You should be able to just follow along and add in [1.11] and [1.11.2] into the ACCEPTED_VERSIONS when he walks you through that.  I think it all should be compatible.  Since you already have your environment setup for IDEA you can skip the first video.  Here's a link to the playlist;

 

 

Note:  I did find a few other 1.10.2 tutorial series on YouTube but they either had extremely bad video compression/resolution, so you couldn't really follow along on their screen, or they just went through things like blockStates and Overrides without showing how you'd actually use them realistically.

[larsgerrits 514]

Great tutorial, but why is this not in the ForgeGradle section?

The ForgeGradle subforum is more for issues with ForgeGradle. This is a tutorial on how to use IntelliJ IDEA together with ForgeGradle.

 

can't find anything anywhere for 1.10+ that goes beyond the basics.

The problem with "tutorials" is that they mostly give code and say "do this" without any explanation. And anything beyond the basics is going the more specific to one thing, making an overall tutorial would not really be feasible.

[ViperZeroOne 0]

The problem with "tutorials" is that they mostly give code and say "do this" without any explanation. And anything beyond the basics is going the more specific to one thing, making an overall tutorial would not really be feasible.

 

Actually I find any tutorial is usually only as good as the person who makes them.  If the person does the tutorial in a "teaching"-type format it's usually quite useful, even if they only focus on one specific item.  On the other hand, if the person just goes "Wanna make a block? Type what I'm typing!" and doesn't bother explaining anything than the tutorial is pretty much worthless.

 

The tutorials I posted above, for example, were very well detailed and as I followed along I was able to leave a lot of comments in my code for what every part of the code does.  This helped immensely when I went back and started creating my own items and blocks.  That said, because the tutorials really only covered the very basics I'm missing a lot of the more advanced knowledge that would open me up to things like making a chest, a powered furnace, a custom GUI, etc.

 

I've tried looking at the code from several different mods (like IronChests) but without the explanation of the code, so I can notate why the code is used and what it's doing, it's like trying to read French.

[TheA13X 0]

Just wanted to point out, that it is possible to set up a multi project workspace, just like in Eclipse. But you only need it, If one of your mods depends on another, or other reasons, why you want to load multiple mods at the same time. This saves you the building and copying your mods to the real minecraft folder.

 

It works just like this one plus some fiddling around with the gradle files.

I could make a tutorial for that. At least if you don't want to, seven.

[Sataniq 0]

The way I do this (and I advice you do it) is:

• Download Forge MDK and extract to a folder which will become the mod's root directory. Rename this.
• Open command prompt and cd to the directory (alternatively, shift-right-click in the folder and there MIGHT be an option "Open command window here", in Windows*)
• Run the command: gradle setupDecompWorkspace
• Once that's comlpete, open IDEA
• Click "Import Project", and browse to the .gradle file in the folder you created and select it. Press OK.
• In the "Import Project From Gradle" options, UNCHECK the setting "Create separate module per source set", and click OK.
• Wait for IDEA to finish checking the files
• Open the Gradle tab (View > Tool Windows > Gradle), and run "Your Mod > Tasks > forgegradle > genIntellijRuns".
• Open the example mod class, and when the warning about the project SDK appears at the top, click Setup Project SDK.
• Select your Java Development Kit version and accept.
• Go into Edit Configurations, and under "Use classpath of module" select the only module that should be there.

This is because otherwise you should not have 4 modules, you should have only 1.

For anyone having problems, try this, as it works fine with all versions of Minecraft Forge I've used.

 

* If you don't see this option and you're using Windows 10, navigate to the folder through your local C:\ drive, through \Users\.

[BisexualRuby 1]

An actual tutorial for setting up the Forge MDK with IntelliJ that works! I've followed like 3 different tutorials for IntelliJ and none of them have worked yet this is the most simple one and it works perfectly

[diesieben07 7777]

6 minutes ago, BisexualRuby said:

An actual tutorial for setting up the Forge MDK with IntelliJ that works! I've followed like 3 different tutorials for IntelliJ and none of them have worked yet this is the most simple one and it works perfectly

Thank you

 

Since this post is apparently still found quite often even though it's ages old, I have updated the main post.

[Daeruin 24]

The IntelliJ section in the official Getting Started guide is lacking. It refers to incorrect step numbers, and the instructions seem to assume you already know your way around the IntelliJ interface. Examples:

 

• "Go to Edit configurations..." which is nowhere to be seen in the main interface. It's in the Run menu.
• "Run the setupDecompWorkspace task (inside the forgegradle task group)..." Again, this item is nowhere to be seen in the main interface. I didn't even know what a task group was and had no idea where to look.

Is there a way to report such problems in the documentation, or simply fix them directly?

 

Your post is superior in this respect. I wish I had used it instead.

[diesieben07 7777]

10 hours ago, Daeruin said:

Is there a way to report such problems in the documentation, or simply fix them directly?

https://github.com/MinecraftForge/Documentation

[zyhesLmao 0]

Error says: Could not determine java version from '9.0.4'.
Stacktrace:
        java.lang.IllegalArgumentException: Could not determine java version from '9.0.4'.
        at org.gradle.api.JavaVersion.toVersion(JavaVersion.java:63)
        at org.gradle.api.JavaVersion.current(JavaVersion.java:72)
        at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:32)
        at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:24)
        at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:206)
        at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:169)
        at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
        at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
        at org.gradle.launcher.Main.doAction(Main.java:33)
        at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:564)
        at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:54)
        at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:35)
        at org.gradle.launcher.GradleMain.main(GradleMain.java:23)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:564)
        at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:30)
        at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:127)
        at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:56)

[diesieben07 7777]

You must use Java 8 for the time being.

[Lauroline1066 0]

When i do the build.gradle bit i get an error

Crash   (Not same thing as log)

Log

Edited July 12, 2018 by Lauroline1066

[larsgerrits 514]

13 minutes ago, Lauroline1066 said:

When i do the build.gradle bit i get an error

Crash   (Not same thing as log)

Log

This has nothing to do with Minecraft, this is an issue with IntelliJ.

[Lauroline1066 0]

6 minutes ago, larsgerrits said:

This has nothing to do with Minecraft, this is an issue with IntelliJ.

Do you know how to fix it? Should I uninstall and reinstall?

Edited July 12, 2018 by Lauroline1066

[DaemonUmbra 543]

Are you trying to make a minecraft mod using intellij or are you trying to make an android app?

[Lauroline1066 0]

A minecraft mod

[DaemonUmbra 543]

I'm not an expert at intelliJ, but it looks like you're using android studio rather than idea judging from the android tools errors.

[Lauroline1066 0]

Just now, DaemonUmbra said:

I'm not an expert at intelliJ, but it looks like you're using android studio rather than idea judging from the android tools errors.

How do i not do that?

 

[DaemonUmbra 543]

What program are you launching, IDEA or Android Studio?

[Lauroline1066 0]

1 minute ago, DaemonUmbra said:

What program are you launching, IDEA or Android Studio?

Idea

[DaemonUmbra 543]

The only thing I can think of is re-install idea, but I'm far from the most knowledgeable person here.

[Lauroline1066 0]

23 minutes ago, DaemonUmbra said:

What program are you launching, IDEA or Android Studio?

 

34 minutes ago, larsgerrits said:

This has nothing to do with Minecraft, this is an issue with IntelliJ.

I disabled android and now i get a different error use JDK instead of JRE for gradle importer. Open Gradle settings (clicking on that says it can not find the file location of C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2018.1.6\bin\#open_external_system_settings

i checked and it is all good until the last part) 

Consult IDE log for more....

Edited July 12, 2018 by Lauroline1066

[DaemonUmbra 543]

What version of the JDK do you have installed?