Unable to install steam in 16.04

[alpinejohn]

Hallo Herve5

Please see my reply to your post on this other thread - it may explain the source of your problem and the solution.

Learn Ubuntu MATE (For Beginners)

Your site and the other two mentioned are desperately needed. To escape the MS world everyone needs reassurance that it is not back to MS-DOS and voodoo dolls. Which is what probably 95% of them think. ''Tis hard to beat the millions of dollars MS spends promoting their stuff. Thanks for tackling such a project, Fred

I hope this helps.