New Post: WixForm not found (v1.0.28, 1.0.30)

So...
I'm not very happy with this. Actually, I'm not happy at all.

I tried upgrading to 1.0.30.0 (nuget) - it's been a pain,but at some point I made it work.

However, I now get the error(s):
1>C:\john\code\hm33\dev\Applications\Setup\ProductSettingsForm.cs(14,49,14,56): error CS0246: The type or namespace name 'WixForm' could not be found (are you missing a using directive or an assembly reference?)
1>C:\john\code\hm33\dev\Applications\Setup\ProductSettingsForm.Designer.cs(224,30,224,39): error CS0234: The type or namespace name 'WixButton' does not exist in the namespace 'WixSharp' (are you missing an assembly reference?)
1>C:\john\code\hm33\dev\Applications\Setup\ProductSettingsForm.Designer.cs(225,26,225,37): error CS0234: The type or namespace name 'WixCheckBox' does not exist in the namespace 'WixSharp' (are you missing an assembly reference?)
...
and so on

Same thing happens when upgrading to 1.0.28. What is wrong with this?

Best,
John