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Im new to minecraft coding and I tried to open the game with run and this error poped up [message #1841795]

Sun, 30 May 2021 03:54

Eclipse User

2021-05-30 09:51:25,042 WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream
2021-05-30 09:51:25,045 WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream
[09:51:25] [main/INFO] [GradleStart]: Extra: [username=<username>, password=<password>]
Exception in thread "main" java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap')
at net.minecraftforge.gradle.GradleForgeHacks.searchCoremods(GradleForgeHacks.java:87)
at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:86)
at GradleStart.main(GradleStart.java:26)

I tried to setup eclipse for minecraft coding but I constantly get errors.

Re: Im new to minecraft coding and I tried to open the game with run and this error poped up [message #1841837 is a reply to message #1841795]

Mon, 31 May 2021 17:14

Eclipse User

I've tried this a few months ago, and had the same experience. The problem is that most sites don't update their instructions with the latest versions of Minecraft, so you have to use the exact version of each dependency.

Re: Im new to minecraft coding and I tried to open the game with run and this error poped up [message #1841886 is a reply to message #1841837]

Wed, 02 June 2021 05:44

Eclipse User

I'm trying to make a 1.8.9 mod but I don't know what version to use. Do you know any?

[Updated on: Wed, 02 June 2021 05:45] by Moderator

Re: Im new to minecraft coding and I tried to open the game with run and this error poped up [message #1841896 is a reply to message #1841886]

Wed, 02 June 2021 09:23

Eclipse User

My guess based on Googling this stack trace is that the library you are using does not work with Java 9 or higher because it assume the class loader is a URL class loader. So you either need something newer or run with Java 8.

Re: Im new to minecraft coding and I tried to open the game with run and this error poped up [message #1841954 is a reply to message #1841896]

Fri, 04 June 2021 04:45

Eclipse User

I don't know what I did different but my Eclipse Mars worked and when I ran the java file Minecraft opened so I guess it was the version of Eclipse.

Re: Im new to minecraft coding and I tried to open the game with run and this error poped up [message #1841956 is a reply to message #1841954]

Fri, 04 June 2021 06:09

Eclipse User

Probably your old Mars IDE was using an older JVM and that JVM became the default JRE used in the workspace. Compare what's in Window -> Preferences -> Java -> Installed JREs.

Re: Im new to minecraft coding and I tried to open the game with run and this error poped up [message #1844957 is a reply to message #1841795]

Thu, 30 September 2021 15:03

Eclipse User

I like the idea, and in general, I'm a big fan of Minecraft. I didn't know a lot before and played like a regular beginner until one of my friends showed me https://minecraft.buzz/category/kitpvp, And I didn't realize how much I had lost. If you want to play from a secure server, this is the best option I've ever met. I like that it is not buggy and is well suited for those who have not played before and those who have been in this game for years

[Updated on: Wed, 20 October 2021 09:21] by Moderator

Re: Im new to minecraft coding and I tried to open the game with run and this error poped up [message #1861367 is a reply to message #1844957]

Mon, 09 October 2023 04:56

Eclipse User

I see it's been a while, but I've got a hunch that you've been using the wrong version of Java. Sometimes, Minecraft modding requires an older Java version to work smoothly, so it might be worth trying a different Java version. As for setting up Eclipse for Minecraft coding, it's crucial to follow a reliable guide or tutorial specific to Minecraft modding with Eclipse. But if you're looking to add extra features, I wanted to share that I've discovered a goldmine of mods and addons at modbay.org. They've seriously amped up the game's functionality and made my Minecraft adventures even more exciting. Other Minecraft fans will probably find it interesting too!

[Updated on: Thu, 12 October 2023 03:47] by Moderator

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