This error occurs when our software attempts to use functionality from the .NET 3.5 framework and is unable to do so. Depending upon your operating system, you will need to do the following steps:


Windows Server 2012

Follow the steps detailed here: https://technet.microsoft.com/en-us/library/dn482071.aspx


Windows 10

Follow the steps detailed here: https://answers.microsoft.com/en-us/insider/forum/insider_wintp-insider_install/how-to-instal-net-framework-35-on-windows-10/450b3ba6-4d19-45ae-840e-78519f36d7a4


Older versions of Windows

Install from the following page: https://www.microsoft.com/en-us/download/details.aspx?id=21