I had serious issues trying to upgrade an existing project, and it was not clear online what I should do.<\/p>\n
The main persistent error was:-<\/p>\n
\n.\/node_modules\/raw-loader!.\/node_modules\/postcss-loader\/lib??embedded!.\/node_modules\/sass-loader\/lib\/loader.js??ref–8-3!.\/src\/styles.scss
Module build failed: Error: Node Sass does not yet support your current environment: Windows 64-bit with Unsupported runtime (64)
For more information on which environments are supported please see:
https:\/\/github.com\/sass\/node-sass\/releases\/tag\/v4.8.3<\/p>\n<\/blockquote>\nThe online information on this was not clear.<\/p>\n
Initially I used a liberal combination of npm-update and npm-update \u2013g on various things but still had the above error.<\/p>\n
I reached a point of installing primeng successfully under angular 6 as detailed <\/strong>here.<\/strong><\/a><\/p>\n
I then tried hand editing the package.json file for the upgrade project, stealing the versions from the package.json for the primeng application. However this did not appear to help -I still had the above issues.<\/p>\n
In the end a combination of the following resolved this:-<\/p>\n
\nng update @angular\/cli<\/p>\n
ng update @angular\/cli<\/p>\n
npm install \u2013g node-sass@latest<\/a><\/p>\n