Can't build in visual studio 2015 because 'Microsoft.Build.Tasks.v14.0.dll' cannot be found

Question

When attempting to build in visual studio 2015, the following file is missing? This project was previously being built in VS2013.

Severity Code De

Answer 1

It was enough for me to just restart Visual Studio.

I suspect that I had earlier killed all my MSBuild.exe processes doing something else and that not having any MSBuild.exe processes causes the error.