package has invalid depends field

[mmxbass]

Calculating upgrade... Done
The following packages will be upgraded:
  googleearth googleearth-data
2 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0B/22.9MB of archives.
After unpacking 0B of additional disk space will be used.
Do you want to continue [Y/n]? y
Preconfiguring packages ...
dpkg: parse error, in file `/var/lib/dpkg/available' near line 29831:
 `Depends' field, invalid package name `
E: Sub-process /usr/bin/dpkg returned an error code (2)
mmxbass@Phoenix:~$

[hackel (hackel)]

Looks like you have a corrupted /var/lib/dpkg/available file, likely from a 3rd party source in your sources.list. googleearth is not a part of Ubuntu as it is illegal to distribute (as are the packages you downloaded).