Hello, i have a problem with this error and i don't know the problem :/ can someone help me pls ?

[golden roost]

[15:22:27 ERROR]: Error occurred while enabling GalaxySkyblock v1.0 (Is it up to date?)
java.lang.IllegalArgumentException: Plugin already initialized!
at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:98) ~[spigot-1.8.8.jar:git-Bukkit-741a1bd]
at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:66) ~[spigot-1.8.8.jar:git-Bukkit-741a1bd]
at fr.electroking.galaxyskyblock.CustomItems.<init>(CustomItems.java:13) ~[?:?]

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[lucid leaf]

that happens when the class extending JavaPlugin is instantiated multiple times

[golden roost]

oh, thanks, and how do i fix it ? i have to remove extends ?

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[lucid leaf]

no just make sure that CustomItems is only instantiated once. Are you using Spigot ?

[golden roost]

yes i am, huh, if i got what you said it's this the problem ?

last line

[lucid leaf]

yeah that is the problem

[golden roost]

the right way to do it is using static no ? but im not sure how to do it, can you help me ?

[lucid leaf]

using static ? You have to register your CommandExecutor to your custom command

[golden roost]

but it is all done :3

[lucid leaf]

why do you have two classes extending JavaPlugin?

[golden roost]

i was trying to add some customItem, like a custom manager, like this i will be able to call a new item when i want

[lucid leaf]

only one class should extend JavaPlugin

[golden roost]

oh okey

[golden roost]

oh yes i just removed it thats was purely a misstake ^^' thanks

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[lucid leaf]

btw why are you using four different instances of AllCommands

[golden roost]

cause i got 4 commands ^^' ?

[lucid leaf]

they all still rely on the same method

[golden roost]

im new to java, but im ancient to c# x)

[golden roost]

but what do i put in getcommand("") so ?

[lucid leaf]

show me the onCommand method in your AllCommands class

[lucid leaf]

yeah you are differentiating between the different commands by using their respective names. However, there is no need to create four instances of the class AllCommands for that. Instead you can just do:

AllCommands executor = new AllCommands();
getCommand().setExecutor(executor);
...

[golden roost]

oh yes okey i see, thanks

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[golden roost]

btw do you know an event to add stuff only when it's the first time a player join ?

[lucid leaf]

i'm not too sure. You can use the PlayerJoinEvent to detect if a player has joined. Maybe add some metadata to the player that let's you determine if the player has newly joined or has joined once before. Or you could check the username cache although I don't know how to do that in the context of a plugin

[golden roost]

okey thanks you, im already using this event, so i just have to look for solution with cache or smtg

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[golden roost]

thanks you so much 🙏