Execute as template of sass files not working

So there is an example on the Hugo webpage (https://gohugo.io/hugo-pipes/resource-from-template) showing how to use external scss files with variables to be used as a template. For some reason, this is not working any more in version 0.54.

I am getting an error as

Building sites … ERROR 2019/03/18 16:50:33 error: failed to transform resource: TOCSS: failed to transform "main.scss" (text/x-scss): this feature is not available in your current Hugo version
Total in 140 ms
Error: Error building site: render of "404" failed: execute of template failed: template: 404.html:5:8: executing "404.html" at <partial "head.html" ...>: error calling partial: "C:\Users\aksha\Documents\GitHub\akshaybabloo\themes\Spark\layouts\partials\head.html:89:11": execute of template failed: template: partials/head.html:89:11: executing "partials/head.html" at <$style.Content>: error calling Content: TOCSS: failed to transform "main.scss" (text/x-scss): this feature is not available in your current Hugo version

The error message means that you need to install the extended version of Hugo. We curretnly procude two set of binaries for reasons too complicated to explain in one sentence …