Plugin funktioniert nicht

[Mario52]

Hallo.
Mein selbstgemachtes Plugin funktioniert nicht. Ich habe schon vieles versucht, aber auch aus dem Log in der Konsole bin ich nicht schlau geworden. Hier mal der Fehler

[18:39:36] [Server thread/ERROR]: Could not load 'plugins\MyCity.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NullPointerException
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:137) ~[craftbukkit.jar:git-Spigot-1326]
	at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:314) ~[craftbukkit.jar:git-Spigot-1326]
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:236) [craftbukkit.jar:git-Spigot-1326]
	at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugins(CraftServer.java:355) [craftbukkit.jar:git-Spigot-1326]
	at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:135) [craftbukkit.jar:git-Spigot-1326]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:437) [craftbukkit.jar:git-Spigot-1326]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Spigot-1326]
Caused by: java.lang.NullPointerException
	at me.Mario_52.plugin.<init>(plugin.java:24) ~[?:?]
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.7.0_45]
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.7.0_45]
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.7.0_45]
	at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.7.0_45]
	at java.lang.Class.newInstance(Unknown Source) ~[?:1.7.0_45]
	at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:52) ~[craftbukkit.jar:git-Spigot-1326]
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:133) ~[craftbukkit.jar:git-Spigot-1326]
	... 6 more

 

[RaphixxYT]

Du hast nen murcks programmiert. Das siehst du an dem exception.

 

[Mario52]

Habs schon gefunden.
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