vNext build exits with code 1

Question

When I run the new vNext build ctrl+b I receive the following error

Error   8   The command ""C:\Users\xx\.kre\packages\kre-clr-x86.1.0.0-alpha4\bin\klr.exe"    "C:\Users\xx\.kre\packages\kre-clr-x86.1.0.0-  alpha4\bin\lib\Microsoft.Framework.PackageManager\Microsoft.Framework.PackageManager.dll" build --check   "C:\api_vnext\src\Api" --configuration Debug" exited with code 1. C:\Program   Files (x86)\MSBuild\Microsoft\VisualStudio\v14.0\AspNet\Microsoft.Web.AspNet.targets   136 5   Api

If I try to run this in the command window I receive

unable to locate project.json

My project is an empty vNext web project and I have downloaded the latest Visual Studio CTP and run the KVM upgrade to get the alpha4 components.

Build output looks like this

System.Exception: TODO: Error: unrecognized option '--check'

Answer 1

The fix is to Upgrade to Visual Studio CTP 4 or higher