[17:43:36] [Server thread/ERROR]: Could not load 'plugins/Prison3-3.0.0-SNAPSHOT.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: Cannot find main class `co.uk.dmp9software.prison3.core.Command'
	at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:66) ~[spigot.jar:git-Spigot-9284e9b-7722428]
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:131) ~[spigot.jar:git-Spigot-9284e9b-7722428]
	at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:329) ~[spigot.jar:git-Spigot-9284e9b-7722428]
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251) [spigot.jar:git-Spigot-9284e9b-7722428]
	at org.bukkit.craftbukkit.v1_8_R2.CraftServer.loadPlugins(CraftServer.java:291) [spigot.jar:git-Spigot-9284e9b-7722428]
	at net.minecraft.server.v1_8_R2.DedicatedServer.init(DedicatedServer.java:199) [spigot.jar:git-Spigot-9284e9b-7722428]
	at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:522) [spigot.jar:git-Spigot-9284e9b-7722428]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_45]
Caused by: java.lang.ClassNotFoundException: co.uk.dmp9software.prison3.core.Command
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_45]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:101) ~[spigot.jar:git-Spigot-9284e9b-7722428]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86) ~[spigot.jar:git-Spigot-9284e9b-7722428]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_45]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_45]
	at java.lang.Class.forName0(Native Method) ~[?:1.8.0_45]
	at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_45]
	at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:64) ~[spigot.jar:git-Spigot-9284e9b-7722428]
	... 7 more