I am using the latest trial version (V 3.4) of Dynamic Forms module.
These are the steps I followed to add the module -
1) Extracted the contents of the zip file.
2) Copied the folder Dynamic Forms with the content files in the DesktopModules folder under Dot Net Nuke root directory(DNN\DesktopModules\Dynamic Forms).
3) Went to Host-->Module Definitions-->Create New Module-->Create Module from Manifest-->Module Forms
ynamic Forms(my folder showed up here)-->Selected the manifest file as resource-->Checked "Add Test Page"-->OK.
It adds the module, creates the page. But when I try to load the page, I get the message that I listed earlier.