First time build fails

[wbradney]

First-timer here.
I downloaded and ran build-release.cmd from a VS2015 dev prompt and got many errors like those below. Any tips?

AsyncCmdlet.cs(4,29): error CS0234: The type or namespace name 'Automation' does not exist in the namespace 'System.M
anagement' (are you missing an assembly reference?) [C:\Users\wbradney\Downloads\coapp.powershell-master\coapp.powershe
ll-master\clrplus\Powershell.Core\Powershell.Core.csproj]
DynamicPowershell.cs(18,29): error CS0234: The type or namespace name 'Automation' does not exist in the namespace 'S
ystem.Management' (are you missing an assembly reference?) [C:\Users\wbradney\Downloads\coapp.powershell-master\coapp.p
owershell-master\clrplus\Powershell.Core\Powershell.Core.csproj]
DynamicPowershell.cs(19,29): error CS0234: The type or namespace name 'Automation' does not exist in the namespace 'S
ystem.Management' (are you missing an assembly reference?) [C:\Users\wbradney\Downloads\coapp.powershell-master\coapp.p
owershell-master\clrplus\Powershell.Core\Powershell.Core.csproj]

[wbradney]

Hmmm. Switched to my old dev machine with VS2013 installed and it builds fine there...