Server won't start

Whenever I try to start my server up (1.0.0 RB) I get this error:

Code:

2012-01-16 19:50:10 [INFO] Starting minecraft server version 1.0.1
2012-01-16 19:50:10 [INFO] Loading properties
2012-01-16 19:50:10 [INFO] Starting Minecraft server on *:25565
2012-01-16 19:50:10 [INFO] This server is running Craftbukkit version git-Bukkit-1.0.1-R1-b1597jnks (MC: 1.0.1) (Implementing API version 1.0.1-R1)
2012-01-16 19:50:10 [INFO] Preparing level "world "
2012-01-16 19:50:10 [INFO] Default game type: 0
2012-01-16 19:50:10 [SEVERE] java.io.FileNotFoundException: .\world \session.lock (The system cannot find the path specified)
2012-01-16 19:50:10 [SEVERE]    at java.io.FileOutputStream.open(Native Method)
2012-01-16 19:50:10 [SEVERE]    at java.io.FileOutputStream.<init>(Unknown Source)
2012-01-16 19:50:10 [SEVERE]    at java.io.FileOutputStream.<init>(Unknown Source)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.WorldNBTStorage.f(WorldNBTStorage.java:44)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.WorldNBTStorage.<init>(WorldNBTStorage.java:38)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.ServerNBTManager.<init>(SourceFile:18)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:242)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:165)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:399)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
2012-01-16 19:50:10 [SEVERE] java.lang.RuntimeException: Failed to check session lock, aborting
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.WorldNBTStorage.f(WorldNBTStorage.java:53)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.WorldNBTStorage.<init>(WorldNBTStorage.java:38)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.ServerNBTManager.<init>(SourceFile:18)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:242)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:165)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:399)
2012-01-16 19:50:10 [SEVERE]    at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
2012-01-16 19:50:10 [SEVERE] Unexpected exception
java.lang.RuntimeException: Failed to check session lock, aborting
    at net.minecraft.server.WorldNBTStorage.f(WorldNBTStorage.java:53)
    at net.minecraft.server.WorldNBTStorage.<init>(WorldNBTStorage.java:38)
    at net.minecraft.server.ServerNBTManager.<init>(SourceFile:18)
    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:242)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:165)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:399)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)

My server has been up before. I got this error while having plugins (File 1) but when I removed them I have the same error.

Thanks for your time
~Legoben1998

 

I had the similar error all i did was start a new map

 

java.io.FileNotFoundException: .\world \session.lock (The system cannot find the path specified)

Ive highlighted the above, your missing the session.lock file as it states it cannot find the path

I would delete the world folder and regenerate if this is your first time creating your world map

 

I believe the issue is with the space after the world. Can't be sure, though.
Try renaming your world folder to "world" without that space.
Also change the world name from server.properties to be "world".

 

Nope, I've added a completly new world and I still get this error. (The world I was using when I got this error did have the session.lock file in it too. Would it be easier to just re-make my server?