update-apt-xapian-index crashed with ParsingError in parse(): ParsingError in file '/usr/share/app-install/desktop/opera.desktop', Parsing error on key, group missing

[radzha]

Binary package hint: apt-xapian-index

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ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: apt-xapian-index 0.41ubuntu5
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
Date: Thu Apr 7 00:13:05 2011
ExecutablePath: /usr/sbin/update-apt-xapian-index
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/sbin/update-apt-xapian-index --batch-mode --force --update
ProcEnviron:

PythonArgs: ['/usr/sbin/update-apt-xapian-index', '--batch-mode', '--force', '--update']
SourcePackage: apt-xapian-index
Title: update-apt-xapian-index crashed with ParsingError in parse(): ParsingError in file '/usr/share/app-install/desktop/opera.desktop', Parsing error on key, group missing
UpgradeStatus: Upgraded to natty on 2011-04-06 (0 days ago)
UserGroups: