https://bugs.winehq.org/show_bug.cgi?id=44090
--- Comment #10 from Louis Lenders xerox.xerox2000x@gmail.com --- (In reply to Mikhail from comment #9)
Strange, but even after installing dotnet45, Sourcetree couldn't see .NET 4.5 and still suggest to install it.
Can you look into attached install dotnet45 log. Was everything right there?
Hi Mikhail, you`re trying to intall .Net on a 64-bit WINEPREFIX. That doesnt work yet in wine. Try restart again using WINEARCH=WIN32