Comment 3 for bug 1771018

Thanks for your report.

This is due to a conflict with steam-launcher which is not part of the Ubuntu repository. Please remove this package and try again. If you have problems installing Steam from the upstream debian package please report a bug on upstream's bug tracker (https://github.com/ValveSoftware/steam-for-linux)

I'm closing this report because it is not a bug with Ubuntu, but do not hesitate to submit any bug you may find.