An unresolvable problem occurred while initializing the package information; "E:Type 'ain' is not known on line 3 in source list /etc/apt/sources.list.d/ehoover-compholio-precise.list"

[John]

I'm using Ubuntu 12.04.2 LTS.
I installed the Netflix app a few hours ago, as well as the Q4Wine and Winetricks apps. When I booted up just now, the caution-icon appeared on the desktop; mousing over it showed the message, "A problem occurred when checking for the updates." So I ran Update Manager and got the following message:

"Could not initialize the package information

An unresolvable problem occurred while initializing the package information.

Please report this bug against the 'update-manager' package and include the following error message:

'E:Type 'ain' is not known on line 3 in source list /etc/apt/sources.list.d/ehoover-compholio-precise.list'`".

I'm guessing that "ehoover-compholio" is the source for the Netflix app? If so, what would you suggest, please?

[Javier López (javier-lopez)]

You're been affected by bug #789859 I'll mark it as duplicate, I suggest looking for workarounds at that report, I think you can fix it by removing the line offended.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.