_ [debian] acroread-l10n-en 変?

# apt-get dist-upgrade  
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following extra packages will be installed:
  acroread acroread-data acroread-debian-files
Suggested packages:
  acroread-plugins mozilla-acroread
Recommended packages:
  acroread-dictionary-en acroread-dictionary
The following packages will be REMOVED:
The following NEW packages will be installed:
The following packages will be upgraded:
  acroread acroread-data acroread-debian-files
3 upgraded, 1 newly installed, 1 to remove and 4 not upgraded.
Need to get 0 B/33.7 MB of archives.
After this operation, 28.5 MB disk space will be freed.
Do you want to continue [Y/n]? y
E: Could not perform immediate configuration on 'acroread-l10n-en'. Please see man 5 apt.conf under APT::Immediate-Configure for details. (2)

となって、どうしても更新できない。APT::Immediate-Configure を 0 にしても 1 にしても true にしても false にしてもだめ。仕方がないので一旦全部 remove して入れ直すとうまくいった。