Updated rhtml template?

Can anyone provide some guidance on building a basic rhtml visual?

I'm trying to upgrade one of my custom visuals from the 1.12.0 api to 2.2.2.  I'm ultimately trying to make the jump to v3.0, but am hoping that understanding how to adapt to v2.2 will make the jump to v3.0 easier.  Due to the ugly state of the custom visuals tutorials, I'm in over my head with trying to modify my existing files, so I'm trying to start again from scratch.  I've tried creating a barebones visual following https://github.com/Microsoft/PowerBI-visuals/blob/master/RVisualTutorial/CreateRHTML.md by running:

pbiviz new sampleRHTMLVisual -t rhtml
cd sampleRHTMLVisual
pbiviz package

 This then bombs out with:

PS C:\Users\foo\sampleRHTMLVisual> pbiviz package
 info   Building visual...
 info   Start preparing plugin template
(node:22948) DeprecationWarning: Tapable.plugin is deprecated. Use new API on `.hooks` instead
 info   Finish preparing plugin template


 ERROR  Failed to compile with 1 errors                                                                                                                                                                         3:54:44 PM
 error  in C:\Users\foo\sampleRHTMLVisual\.tmp\precompile\visualPlugin.ts

[tsl] ERROR in C:\Users\foo\sampleRHTMLVisual\.tmp\precompile\visualPlugin.ts(1,10)
      TS2305: Module '"C:/Users/foo/sampleRHTMLVisual/src/visual"' has no exported member 'Visual'.

 info   Package created

PS C:\Users\foo\sampleRHTMLVisual> pbiviz info
 info   visual.name.................. sampleRHTMLVisual
 info   visual.displayName........... sampleRHTMLVisual
 info   visual.guid.................. sampleRHTMLVisualFD5DB360EB6347DAB2B06990D9A98AE1
 info   visual.visualClassName....... Visual
 info   visual.version............... 1.0.0
 info   visual.description...........
 info   visual.supportUrl............
 info   visual.gitHubUrl.............
 info   apiVersion................... 2.2.0
 info   author.name..................
 info   author.email.................
 info   assets.icon.................. assets/icon.png
 info   style........................ style/visual.less
 info   capabilities................. capabilities.json
 info   dependencies................. dependencies.json
 info   stringResources.............. []