Error: java.lang.Error: Unresolved compilation problems:

Here is the full error:

[SEVERE] Could not load 'plugins/quakecraftdev.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.Error: Unresolved compilation problems:
Syntax error, annotations are only available if source level is 5.0
Syntax error, annotations are only available if source level is 5.0
Syntax error, annotations are only available if source level is 5.0

at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:182)
at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230)
at org.bukkit.craftbukkit.v1_5_R3.CraftServer.loadPlugins(CraftServer.java:239)
at org.bukkit.craftbukkit.v1_5_R3.CraftServer.<init>(CraftServer.java:217)
at net.minecraft.server.v1_5_R3.PlayerList.<init>(PlayerList.java:55)
at net.minecraft.server.v1_5_R3.DedicatedPlayerList.<init>(SourceFile:11)
at net.minecraft.server.v1_5_R3.DedicatedServer.init(DedicatedServer.java:106)
at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:382)
at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.Error: Unresolved compilation problems:
Syntax error, annotations are only available if source level is 5.0
Syntax error, annotations are only available if source level is 5.0
Syntax error, annotations are only available if source level is 5.0

at emerald.quakecraft.<init>(quakecraft.java:10)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:178)
... 9 more



Please Help

Thanks

 

Ryan987
You plugin doesn't compile. It may be configured improperly

 

As it clearly states, your java source level must be 5.0 or higher for annotations, meaning you're either compiling with an old JDK or running on an old JRE