Symptoms

Whenever you try to package a workflows built in Visual Studio using package and deployment tool. An error can state that it cannot package it because the relevant .NET framework runtime needs to be installed on the server you are deploying to.
 

Diagnoses

The relevant framework .NET was not installed on the deploying or target server. Or the incorrect .NET version was selected when creating the project within K2 for Visual Studio.
 

Resolution

To resolve this you can set the .NET version of the project in Visual Studio by selecting: New Project > K2 and at the top of the wizard there is a drop down list of the .NET versions you can select for the project. You will also need the relevant .NET version on the server where you create the package as well as the target server you are deploying to .