Hello, i have VS 2015 and i want compile app with .net 3.5 and when i run app, i get this error (after press button).
An unhandled exception of type 'System.IO.FileLoadException' occurred in System.Windows.Forms.dll
Additional information: Mixed mode assembly is built against version 'v2.0.50727' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.