[RaspberryPi] Server stopps/generates no world

[WarLord]

Hi

i try to get MCServer work on my RaspberryPi.
I installed it with this tutorial: http://www.mc-server.org/wiki/doku.php?id=install
when it try to start it, it stucks anyway.

[11:00:29] --- Started Log ---

[11:00:29] Creating new server instance...
[11:00:29] Reading server config...
[11:00:29] Regenerating settings.ini, all settings will be reset
[11:00:29] Starting server...
[11:00:29] Compatible clients: 1.2.4, 1.2.5, 1.3.1, 1.3.2, 1.4.2, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.5, 1.5.1, 1.5.2, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.7.2
[11:00:29] Compatible protocol versions 29, 39, 47, 49, 51, 60, 61, 73, 74, 77, 78, 4
[11:00:29] Client IPv4 IPv4: Port 25565 is open for connections
[11:00:29] Client IPv6 IPv6: Cannot create listening socket for port 25565: "97: Address family not supported by protocol"
[11:00:30] WebServer IPv4 IPv4: Port 8080 is open for connections
[11:00:30] Loaded 269 crafting recipes
[11:00:30] Loaded 14 furnace recipes and 15 fuels
[11:00:30] -- Loading Plugins --
[11:00:30] -- Loaded 11 Plugins --
[11:00:30] [Generator] BiomeGen value not set in world.ini, using "MultiStepMap".
[11:00:30] [Generator] HeightGen value not set in world.ini, using "Biomal".
[11:00:30] [Generator] CompositionGen value not set in world.ini, using "Biomal".

the Server generates no world. Thanks for any help.

Edit: Im using the latest Build