Error generating metadata in test_component (status=255)

Start by reproducing the failure with npm run build in the generated dash component boilerplate, using the example JavaScript component and the reported Windows/Python 3.8 setup. Inspect the output from dash-generate-components and the surrounding build:py_and_r command; done means identifying the cause and getting a freshly generated example component through the build successfully.

Hello,
I have been having an issue with the dash component boilerplate not generating my components. When I execute

npm run build

It generates the following error

`Error generating metadata in test_component (status=255)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! test_component@0.0.1 build:py_and_r: dash-generate-components ./src/lib/components test_component -p package-info.json --r-prefix ''
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the test_component@0.0.1 build:py_and_r script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\mabadir\AppData\Roaming\npm-cache_logs\2020-06-15T15_43_13_527Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! test_component@0.0.1 build: npm run build:js && npm run build:py_and_r
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the test_component@0.0.1 build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\mabadir\AppData\Roaming\npm-cache_logs\2020-06-15T15_43_13_559Z-debug.log

To test whether this was something that was wrong with my javascript, I ran the cookiecutter command again in a new python project to create a new component. For set up I selected the following

You've downloaded C:\Users\mabadir.cookiecutters\dash-component-boilerplate before. Is it okay to delete and re-download it? [yes]:
project_name [my dash component]: Test Component
project_shortname [test_component]:
component_name [TestComponent]:
r_prefix []:
author_name [Enter your first and last name (For package.json)]: MA
author_email [Enter your email (For package.json)]: ma
github_org []:
description [Project Description]: testing
Select license:
1 - MIT License
2 - BSD License
3 - ISC License
4 - Apache Software License 2.0
5 - GNU General Public License v3
6 - Not open source
Choose from 1, 2, 3, 4, 5, 6 [1]:
publish_on_npm [True]: False
install_dependencies [True]:
Executing: c:\python38\python.exe -m venv venv

From there I tried npm run build on the example javascript component provided, and it still gave me the above error. Can you please advise?

Edit: Forgot to mention that it was working before.