Warning 16 Namespace or type specified in the Imports 'DotNetNuke' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases. C:\Users\xxxx.xxxx\Documents\My Web Sites\DNN720\DesktopModules\xxxxVB\View.ascx 1 1xxxxVB

I'm getting a few hundred of these for a module I'm attempting to migrate from DNN4/5 to DNN7. Since pretty much nothing I'm trying to migrate from DNN4/5 to 7 works I'm assuming this mystery error has something to do with it.

That was my assumption, but I'm getting these warnings on ALL DotNetNuke namespaces that are imported into any class file, even references from basically empty .ascx.cs files generated by the template. Since there's no converted code there, it can't be due to an "old" reference. It seems like there's something fundamentally wrong in the project. 

Looking at the references for the project the DotNetNuke.dll looks good, it's referencing the bin folder for the dnndev.me site and the version reflects the version that's there. (latest DNN 7.2.2).