error installing dev-lang:mono-1.9.1

[sirmis]

http://rafb.net/p/9MPd6614.html

i have ran equo update with succes and now i'm trying equo world but i got error when installing this:

>> ## Unpacking package: dev-lang:mono-1.9.1~0.tbz2
>> Cache is now empty.
Traceback (most recent call last):
File "equo.py", line 412, in <module>
rc = text_ui.package(options)
File "../client/text_ui.py", line 106, in package
status, rc = worldUpdate(onlyfetch = equoRequestOnlyFetch, replay = (equoRequestReplay or equoRequestEmptyDeps), upgradeTo = equoRequestUpgradeTo, resume = equoRequestResume, skipfirst = equoRequestSkipfirst, human = True, dochecksum = equoRequestChecksum)
File "../client/text_ui.py", line 205, in worldUpdate
dochecksum = dochecksum
File "../client/text_ui.py", line 850, in installPackages
rc = Package.run(xterm_header = xterm_header)
File "../libraries/entropy.py", line 5446, in run
rc = self.run_stepper(xterm_header)
File "../libraries/entropy.py", line 5367, in run_stepper
rc = self.unpack_step()
File "../libraries/entropy.py", line 5127, in unpack_step
rc = self.__unpack_package()
File "../libraries/entropy.py", line 4140, in __unpack_package
self.infoDict['xpakpath']+"/"+etpConst['entropyxpakdatarelativepath']
File "../libraries/entropyTools.py", line 489, in extractXpak
xpakpath = suckXpak(tbz2file, etpConst['packagestmpdir'])
File "../libraries/entropyTools.py", line 539, in suckXpak
old.seek(counter-bytes-7,2)
IOError: [Errno 22] Invalid argument

[WarraWarra]

First sync equo and then update equo itself to latest version might fix something that went bust in equo / equo database or somewhere along there. Could be something else as well.