dep composed on 2018-05-01 10:40 (UTC-0400):

> Nick Koretsky wrote:

>> deb http://mirror.xcer.cz/trinity-sb stretch deps-r14 main-r14

Looks exactly same as here.

> still no joy. changed the line, did apt-get update, but sudo aptitude install
> tde-trinity produces: Couldn't find any package whose name is "tde-trinity",
> but there are 2 packages which contain "tde-trinity" in their name:
> compiz-tde-trinity-dbgsym compiz-tde-trinity"

Is this Stretch an upgrade from *buntu? If yes, try logging in as root and
skipping use of sudo and -get or aptitude for installing. Apt has some logical
improvements over apt-get.

Maybe start over using apt clean all before apt update.
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