Bug on launching mc with forge

[bouchbi]

HI, I have this kind of annoying issue on launching, cuz I have made a launcher for a minecraft server and it works for almost every one, except for a few people, I have this error in log :

[2021-12-30 13:39:50.923] [info]  java.util.ServiceConfigurationError: io.github.zekerzhayard.forgewrapper.installer.detector.IFileDetector: Provider io.github.zekerzhayard.forgewrapper.installer.detector.MultiMCFileDetector could not be instantiated
    at java.util.ServiceLoader.fail(Unknown Source)
    at java.util.ServiceLoader.access$100(Unknown Source)
    at java.util.ServiceLoader$LazyIterator.nextService(Unknown Source)
    at java.util.ServiceLoader$LazyIterator.next(Unknown Source)
    at java.util.ServiceLoader$1.next(Unknown Source)
    at io.github.zekerzhayard.forgewrapper.installer.detector.DetectorLoader.loadDetector(DetectorLoader.java:11)
    at io.github.zekerzhayard.forgewrapper.installer.Main.main(Main.java:23)
Caused by: java.lang.NoClassDefFoundError: com/google/gson/JsonElement
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
    at java.lang.Class.getConstructor0(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    ... 5 more

[ZekerZhayard]

how did you launch forgewrapper?

[bouchbi]

With the Minecraft-launcher-core node module

[ZekerZhayard]

I'm not familiar with your launcher, can you provide more details? this error looks like GSON is missing in your Minecraft classpath.

[bouchbi]

I don't really know exactly how minecraft-launcher-core launches forge minecraft. I have made a launcher with an electron application, and to handle minecraft launching I am using the minecraft-launcher-core node-module. Then it's weird because it is not working for just a few people ?

[bouchbi]

I can open an issue on their github to get more details

[ZekerZhayard]

@Pierce01 i assume minecraft-launcher-core is your product, can you help me solve it?

[bouchbi]

After a bit of investigation with the persons having this issue, I found that the reason why this is not working is because they all have a cracked client (like TLauncher), and for me the issue is that TLauncher build a cracked instance of minecraft, but does not install GSON in the game files, unlike Minecraft java which does, and this would explain why ForgeWrapper is not finding the GSON lib. So nothing to do with your product, I apologize