[Solved] Plugins Class Not Found Error

Plugins Plugin Development
1

Good Afternoon,

I have been trying to create a sponge plugin, however every time i compile and put it on a server it gives me a class not found error. I have coded Bukkit plugins before successfully, so im not new at this. Thank you for any help.

tehpredv2

2

Do you have a class properly annotated with @Plugin?

3

Yes i have followed tutorials and tried copying from other plugins. Nothing works still.

4

You’ll have to post your code somewhere for anyone to be able to help you

5

Here is the code minus the imports

@Plugin(id = “DisableCraftV4”, name = “DisableCraftV4”, version = “1.0”)
public class DisableCraftV4{

static Game game = null;
static ConfigurationNode config = null;
static ConfigurationLoader<CommentedConfigurationNode> configurationManager;

@Inject
private Logger logger;

private void setLogger(Logger logger){
	this.logger = logger;
}

public Logger getLogger(){
	return logger;
}


@Inject
@DefaultConfig(sharedRoot = true)
private File dConfig;

@Inject
@DefaultConfig(sharedRoot = true)
private ConfigurationLoader<CommentedConfigurationNode> confManager;

@Subscribe
public void onPreInit(PreInitializationEvent event){
	game = event.getGame();
	setLogger(logger);
	
	try {
		if (!dConfig.exists()) {
			dConfig.createNewFile();
			config = confManager.load();
			List<String> itemsList = Arrays.asList("iron_helmet", "iron_leggings", "iron_chestplate", "iron_boots");
			config.getNode("config", "items").setValue(itemsList);
			confManager.save(config); 
		}
		configurationManager = confManager;
		config = confManager.load();

	} catch (IOException exception) {
		getLogger().error("The default configuration could not be loaded or created!");
	}
	
	CommandSpec disableCommandSpec = CommandSpec.builder()
			.setDescription(Texts.of("Help Command"))
			.setPermission("disable.help")
			.setExecutor(new HelpExecutor())
			.build();
	
	game.getCommandDispatcher().register(this, disableCommandSpec, "disable help", "test", "derp");
	
	getLogger().info("DisableCraftV4 has been enabled!");
	getLogger().info("Created by tehpredv2! The best dev ever on EP");
}


public static ConfigurationLoader<CommentedConfigurationNode> getConfigManager(){
	return configurationManager;
}

}

6

Could you post the stack trace in a paste bin?
I’ve compiled your code on my machine based on what you had on github and it ran fine.
Also what IDE are you using Eclipse? or IntelliJ?

7

http://pastebin.com/7NYiieP2

This is all that it gives me from the start of the errors

8

It could be because you didn’t add the compile output to the jar but first what IDE are you using?

9

I am using Eclipse

10

When exporting your Jar you selected the compile output right?

11

Its a maven project. I did the maven install like i did with Bukkit

12

Tell me how you exported you Jar and ill see if you did anything wrong.

13

Its a maven project, so i right click the project …go to run as … maven install … and that creates a jar that i use … its exactly what i did with bukkit

14

Ahh ok well you should start doing this.
Right click the project -> Click Export -> Click Java -> Then Click JAR File -> Click Next -> Then Select your .java files and anything else you want included and click finish

15

Ah ok i will try that right now. Thank you good sir for the help.

16

Well there are also some errors in your code. Especially with your CommandSpec, I don’t know if you already fixed these but its

CommandSpec disableCommandSpec = CommandSpec.builder()
    .description(Texts.of("Help Command"))
    .permission("disable.help")
    .executor(new HelpExecutor)
    .build();
17

Its still giving the class not found exception

18

open up your jar with a decompiler and see if your main class is there.

19

Its got everything in it.

20

What i think you didnt see was the ClassUnsupportedVersionError which is when the class was compiled with a JDK more recent than the one used for execution.

INFO Caused by: java.lang.UnsupportedClassVersionError: edu/rit/arc6373/DisableCraftV4/DisableCraftV4 : Unsupported major.minor version 52.0

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