Plugin Error Help

Trill · Jan 6, 2015

I made a plugin that lists the ranks on a server but when I tested it, it gave an error and didn't start up.
Error Message:

06.01 20:23:13 [Server] INFO org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: me/CubedOutGaming/Ranks/Ranks : Unsupported major.minor version 52.0 06.01 20:23:13 [Server] ERROR Could not load 'plugins/Ranks.jar' in folder 'plugins'

I'm not so sure what it means. Any help for what I should do?

ColonelHedgehog · Jan 6, 2015

It sounds like you're trying to run a Java 1.8 plugin on a system that only supports 1.7.

Or vice-versa, I'm not sure. I do know that the error means you're using a plugin that isn't supported on your language level.

Trill · Jan 6, 2015

How can I switch it to make it work? I had no issues with the plugin I made a bit ago.

xTigerRebornx · Jan 6, 2015

@Trill Either update your server to Java 8 or compile w/ Java 7

Trill · Jan 7, 2015

I found how to compile with Java 7 but I am am not using a Maven Project so I can't find pom.xml to switch to Java 7. I am using a JavaProject instead.

mythbusterma · Jan 7, 2015

@Trill

Then switch whatever you're using to compile to compile with Java 7.

Burnett · Jan 7, 2015

@Trill In eclipse you can right click your project and click "Build path". Go to the libraries tab and click the java library it is using then select edit and change it to the desired version.

Trill · Jan 7, 2015

@mythbusterma
I found a button what allows me to convert to Maven Project. Should I do it?

mythbusterma · Jan 7, 2015

@Trill

If you want a Maven project.

Trill · Jan 7, 2015

@mythbusterma
Could it ruin my plugin? Also what would it change?

mythbusterma · Jan 7, 2015

@Trill

If you don't understand what Maven is and why it's used, you probably shouldn't be using it. Just change your compile version. It really is not difficult.

Burnett · Jan 7, 2015

@Trill D̶o̶ ̶y̶o̶u̶ ̶k̶n̶o̶w̶ ̶w̶h̶a̶t̶ ̶m̶a̶v̶e̶n̶ ̶i̶s̶?̶ ̶I̶f̶ ̶n̶o̶t̶ ̶t̶h̶e̶n̶ ̶e̶i̶t̶h̶e̶r̶ ̶g̶o̶o̶g̶l̶e̶ ̶i̶t̶ ̶a̶n̶d̶ ̶f̶i̶n̶d̶ ̶o̶u̶t̶ ̶o̶r̶ ̶d̶o̶ ̶w̶h̶a̶t̶ ̶I̶ ̶s̶t̶a̶t̶e̶d̶.̶ Ninja'd

Trill · Jan 7, 2015

I'm trying to find how to change my compile version but none of the websites are helping.

mythbusterma · Jan 7, 2015

@Trill

In most IDE's it's a project setting....

Trill · Jan 7, 2015

@mythbusterma

I FOUND IT

My server is running on Java 1.8 and my plugin is using 1.7...

mythbusterma · Jan 7, 2015

@Trill

That wouldn't cause an error. Your server is running 1.7 and you're compiling against 1.8.

Trill · Jan 7, 2015

@mythbusterma
How would I fix it?
http://gyazo.com/74ca8783867391852a5c73bcd33b446b

mythbusterma · Jan 7, 2015

@Trill

That's correct.

Trill · Jun 13, 2016

@mythbusterma

That picture shows how it was set already. I didn't change anything.
Switching it to 1.8 gives errors everywhere...
What should I do?

Now the plugin shows up in the list of plugins but everytime that I type the command to use the plugin, it gives: http://gyazo.com/f90b5e7bc2b9336bb4c4cd47fd603091

The Console shows:
07.01 09:57:17 [Server] ERROR Cannot load configuration from jar
07.01 09:57:17 [Server] INFO Enabling Ranks v1.0

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

sirrus86 · Jan 7, 2015

The image you showed would tell me that an error stacktrace probably showed up in the console. We'd need to see that and some of your source, particularly the class where the command is fired.

Trill · Jan 12, 2015

When I type the command in chat:
07.01 10:19:54 [Server] INFO ... 13 more 07.01 10:19:54 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at me.CubedOutGaming.Ranks.Ranks.onCommand(Ranks.java:32) ~[?:?] 07.01 10:19:54 [Server] INFO Caused by: java.lang.NullPointerException 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:260) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:667) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.ServerConnection.c(SourceFile:134) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:157) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.PacketPlayInChat.handle(PacketPlayInChat.java:47) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.PacketPlayInChat.a(PacketPlayInChat.java:28) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.PlayerConnection.a(PlayerConnection.java:817) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.PlayerConnection.handleCommand(PlayerConnection.java:956) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServer.java:701) ~[craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) ~[craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO org.bukkit.command.CommandException: Unhandled exception executing command 'ranks' in plugin Ranks v1.0 07.01 10:19:54 [Server] ERROR null

Forge_User_61282360 · Jan 7, 2015

Trill said: ↑
When I type the command in chat:
07.01 10:19:54 [Server] INFO ... 13 more 07.01 10:19:54 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at me.CubedOutGaming.Ranks.Ranks.onCommand(Ranks.java:32) ~[?:?] 07.01 10:19:54 [Server] INFO Caused by: java.lang.NullPointerException 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:260) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:667) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.ServerConnection.c(SourceFile:134) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:157) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.PacketPlayInChat.handle(PacketPlayInChat.java:47) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.PacketPlayInChat.a(PacketPlayInChat.java:28) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.PlayerConnection.a(PlayerConnection.java:817) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at net.minecraft.server.v1_7_R3.PlayerConnection.handleCommand(PlayerConnection.java:956) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServer.java:701) ~[craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) ~[craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] 07.01 10:19:54 [Server] INFO org.bukkit.command.CommandException: Unhandled exception executing command 'ranks' in plugin Ranks v1.0 07.01 10:19:54 [Server] ERROR null
Code:
public class Ranks extends JavaPlugin
{
    Logger myPluginLogger = Bukkit.getLogger();

    @Override
    public void  onEnable()
    {
        getConfig().options().copyDefaults(true);
        saveConfig();
    }
    @Override
    public void onDisable()
    {
 
    } 

    public boolean onCommand(CommandSender theSender, Command cmd, String commandLabel, String[] args)
    { 
        if(commandLabel.equalsIgnoreCase("ranks"))
        {
            Player thePlayer = (Player) theSender;
            thePlayer.sendMessage(getConfig().getString("A").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("B").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("C").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("D").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("E").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("F").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("G").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("H").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("I").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("J").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("K").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("L").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("M").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("N").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("O").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("P").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("Q").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("R").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("S").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("T").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("U").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("V").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("W").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("X").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("Y").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("Z").replaceAll("&", "\u00A7"));
            thePlayer.sendMessage(getConfig().getString("Free").replaceAll("&", "\u00A7"));

        }
 
        return true;
    }

}
I also made a Config file that has all the text that is sent to the player.
Click to expand...
Maybe this help you :
Code:
public void sendMessage(Player player, String path) {
   if(getConfig().getString(path) == null { return; } 
   String string = getConfig().getString(path);
   player.sendMessage(ChatColor.translateAlternateColorCodes('&', string));
}

//How to use it :
sendMessage(player , "X");

Trill · Jan 12, 2015

I fixed the error on my own.

ColonelHedgehog · Jan 12, 2015

Mind telling us how you did it? It might help anyone with a similar problem who reads this thread.

Trill · Jan 12, 2015

I don't think that this is the best solution to it but I erased the config and made everything by sending text to a player using the regular Eclipse color tools e.g (ChatColor.AQUA)

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Plugin Error Help

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