FOSS gamedev and creative worlds

I tried to create a new map for use in single player, and then ran into a problem.




Was working fine until I tried to generate a new single-player world. Any ideas?

Running Windows 7 64-bit,
Minetest 0.4.5

Mods:
technic (disabling didn't work, and it worked fine before)
moreores
moreblocks
plantlife
pipeworks
homedecor
mesecons

It won't allow me to upload more than one link, so here what it said in the console:

ERROR[main] A serialization error occurred:
ERROR[main] unsupported NodeBox version
ERROR[main] The server is probably running a different version of Minetest.

Wha? It's single player, so I AM the server.

What's even more aggravating is that it locked me out of my previously-stable map, giving me the same error code. I didn't install any new mods, so what gives?

Try to remove the mods one by one. Apparently one of those mods is not compatable with youre MT version.

Pipeworks, technic, and mesecons, and possibly homedecor all use nodeboxes.