https://bugs.winehq.org/show_bug.cgi?id=37343
--- Comment #4 from Philippe Lemarre phil.lemarre@free.fr --- I can confirm this bug.
After a BattleNet update, i could'nt start Battle Net launcher anymore. Same error as reported I've reinstall battlenet (after a complete removal) : same error
I've copied my wine Battle.net directory under a window$ partition and started it under window$ : it works
Ubuntu 14.04 Gnome 3.10 wine 1.7.27
I've joined a log , which ,btw, is exactly the same than already reported.