if($("player.LumberEXP." + @player("name")) == null) {
	@console("script pubvars add player.LumberEXP." + @player("name"))
}

[Dec 10, 2015 5:20:24 PM]: Error in script 'test.ds' -> 'Join' at line #4 (script line #1):
java.lang.IllegalStateException: Could not resolve symbol: player.LumberEXP.Ghaz_ranka
	at com.google.common.base.Preconditions.checkState(Preconditions.java:176)
	at com.pqqqqq.directscript.lang.data.container.VariableContainer.resolveValue(VariableContainer.java:66)
	at com.pqqqqq.directscript.lang.data.container.VariableContainer.resolve(VariableContainer.java:58)
	at com.pqqqqq.directscript.lang.data.container.expression.ConditionalExpressionContainer.resolve(ConditionalExpressionContainer.java:44)
	at com.pqqqqq.directscript.lang.data.container.ConditionContainer.resolve(ConditionContainer.java:60)
	at com.pqqqqq.directscript.lang.data.container.ConditionContainer.resolve(ConditionContainer.java:13)
	at com.pqqqqq.directscript.lang.reader.Context.<init>(Context.java:46)
	at com.pqqqqq.directscript.lang.reader.Line.toContext(Line.java:180)
	at com.pqqqqq.directscript.lang.reader.Block$BlockRunnable.execute(Block.java:125)
	at com.pqqqqq.directscript.lang.script.ScriptInstance.execute(ScriptInstance.java:218)
	at com.pqqqqq.directscript.lang.script.ScriptInstance.execute(ScriptInstance.java:209)
	at com.pqqqqq.directscript.lang.trigger.cause.Cause.activate(Cause.java:79)
	at com.pqqqqq.directscript.events.TriggerEvents.join(TriggerEvents.java:41)
	at org.spongepowered.common.event.listener.JoinListener_TriggerEvents_join4.handle(Unknown Source)
	at org.spongepowered.common.event.RegisteredListener.handle(RegisteredListener.java:86)
	at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:228)
	at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:189)
	at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:268)
	at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:240)
	at org.spongepowered.common.SpongeImpl.postEvent(SpongeImpl.java:111)
	at net.minecraft.server.management.ServerConfigurationManager.initializeConnectionToPlayer(ServerConfigurationManager.java:297)
	at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.completeServerSideConnection(NetworkDispatcher.java:234)
	at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.access$100(NetworkDispatcher.java:50)
	at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:186)
	at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:248)
	at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:191)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:727)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:364)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:598)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:478)
	at java.lang.Thread.run(Unknown Source)