Using essentials2021 offline

[me-ch]

After installing the pyret-npm package, I tried running some of the code on chapter 3.1 of DCIC.

Compiling code with the use context essentials2021 line gave me the following error message:

Compiling worklist...Could not find builtin module essentials2021 in any of ./.pyret/compiled, /usr/lib/node_modules/pyret-npm/pyret-lang/build/phaseA/lib-compiled

I tried using essentials2020 instead but it looks like it does not define the circle, triangle, overlay, above, and rectangle methods