&gt; I hate to say this, but a lot of your issues might also be coming from the TFS integration.<p>I suspect some of the problems are, for sure - our big internal project is a multi-million line app, maybe 70-80 csprojs.  VS2013 dealt with it OK, but had its occasional problems (the TFS issues weren&#x27;t occasional though), VS2015 is much worse in general.  It&#x27;s very unstable.<p>My open-source project LanguageExt [1] uses git and isn&#x27;t that large.  I still get crashes and lock-ups.  It was the first project I migrated to DNX also.  It takes an age to build (where the sln&#x2F;csproj system doesn&#x27;t), and nails the CPU (99% usage).  Something is very wrong, and very unfinished.<p>I can see where MS is going with this new open-source tools approach, but at the moment the whole thing seems to be a mess, and VS just can&#x27;t deal with it.  The one ray of light is the git integration.  That works for the most common scenarios.  I only occasionally have to drop back to the cmd line.<p>[1] <a href="https:&#x2F;&#x2F;github.com&#x2F;louthy&#x2F;language-ext" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;louthy&#x2F;language-ext</a>