Lost world file, regenworld is not working [SOLVED]

[Ernetas]

I've lost my /var/lib/portage/world file and don't know what to do...
I've been trying to run regenworld but it ends just like that:

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<..>
add to world: net-p2p/linuxdcpp
add to world: net-p2p/amule
add to world: dev-cpp/gtkmm
add to world: x11-libs/openmotif
add to world: net-print/foo2zjs
Traceback (most recent call last):
  File "/usr/sbin/regenworld", line 83, in ?
    mylist=portage.db["/"]["vartree"].dbapi.match(mykey)
  File "/usr/lib/portage/pym/portage/dbapi/vartree.py", line 554, in match
    mydep = dep_expand(
  File "/usr/lib/portage/pym/portage/__init__.py", line 5998, in dep_expand
    return portage.dep.Atom(prefix + expanded + postfix)
  File "/usr/lib/portage/pym/portage/dep.py", line 400, in __init__
    raise InvalidAtom(s)
portage.exception.InvalidAtom: =sys-devel/gnuconfig

What should I do?
I've tried gnuconfig versions 20070724 and 20080123.

[Ernetas]

Okay, I've solved this problem by running this (I've never found this anywhere so I didn't deleted this topic):

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# eix -I --only-names > /var/lib/portage/world

And now there's another problem... Running „emerge -av world“ gives me to compile all packages. So I just added this line into /etc/make.conf:

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EMERGE_DEFAULT_OPTS="--deep -u"

Is that good?

[hielvc]

Ernetas now you need to " emerge udept ". Then run " dep -w ". This will clean up your world file. What you did was to put everything installed into yours. All it should have is programs you wanted installed.