Server Error Plugin

org.bukkit.plugin.InvalidPluginException: Cannot find main class `me.telesew123.
herobuilds.Main'
        at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.jav
a:42) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.j
ava:127) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.
java:328) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager
.java:251) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        at org.bukkit.craftbukkit.v1_7_R3.CraftServer.loadPlugins(CraftServer.ja
va:355) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        at org.bukkit.craftbukkit.v1_7_R3.CraftServer.<init>(CraftServer.java:31
7) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        at net.minecraft.server.v1_7_R3.PlayerList.<init>(PlayerList.java:68) [c
raftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        at net.minecraft.server.v1_7_R3.DedicatedPlayerList.<init>(SourceFile:14
) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        at net.minecraft.server.v1_7_R3.DedicatedServer.init(DedicatedServer.jav
a:126) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java
:436) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:6
28) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
Caused by: java.lang.ClassNotFoundException: me.telesew123.herobuilds.Main
        at java.net.URLClassLoader$1.run(URLClassLoader.java:366) ~[?:1.7.0_51]
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355) ~[?:1.7.0_51]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_
51]
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354) ~[?:1.7.0_
51]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:77) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:62) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425) ~[?:1.7.0_51]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ~[?:1.7.0_51]
        at java.lang.Class.forName0(Native Method) ~[?:1.7.0_51]
        at java.lang.Class.forName(Class.java:270) ~[?:1.7.0_51]
        at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.jav
a:40) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.2-1-ga6e0bfd-b3095jnks]
        ... 10 more