EFConcurrencyModeTest helps you write unit tests (for e.g. NUnit) that test whether optimistic concurrency for Entity Framework is enabled in your EDMX files.
See the documentation for more information.
For some reason, on certain computers you can only run "build.cmd" from the "Developer Command Prompt" (under the Visual Studio folder of the start menu).
As of April 2017, Visual Studio 2017 doesn't install the \Program Files (x86)\MSBuild\Microsoft\VisualStudio\v15.0\FSharp\Microsoft.FSharp.Targets file correctly (at least not on my computer). If this is the case, you need to create that file and insert the following content:
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="$(MSBuildProgramFiles32)\Microsoft SDKs\F#\4.1\Framework\v4.0\Microsoft.FSharp.Targets" />
</Project>