Sitecore Demo Edge site: Server Error: Cannot find module for page: /[[...path]]

This is a shady error. It happens only once and the very first-time of the Sitecore Demo Edge site load. 

Context and Solution:

As part of setting up Sitecore Demo Edge site locally and executing up.ps1 after setting up node modules (location: \Sitecore.Demo.Edge\Website\src\rendering), the home page doesn't appear first-time and the following error is thrown. If I believe myself, all that needs to be done is manually install npm packages (in a new cmd prompt) then in a "new" PowerShell prompt, execute up.ps1. The error was gone and the site loaded fine thereafter!

To prove this definitely worked, I commented the npm install related lines from up.ps1, then manually performed npm install in the concerned folder and, then opened a new PS prompt, executed up.ps1 to see the site load fine!

Error:

Server Error

Error: Cannot find module for page: /[[...path]]

This error happened while generating the page. Any console logs will be displayed in the terminal window.

Call Stack

pageNotFoundError

file:///C:/app/node_modules/next/dist/server/require.js (16:17)

getPagePath

file:///C:/app/node_modules/next/dist/server/require.js (39:15)

Object.requirePage

file:///C:/app/node_modules/next/dist/server/require.js (44:22)

Object.loadComponents

file:///C:/app/node_modules/next/dist/server/load-components.js (58:23)

Object.loadStaticPaths

file:///C:/app/node_modules/next/dist/server/dev/static-paths-worker.js (20:51)

execFunction

file:///C:/app/node_modules/next/dist/compiled/jest-worker/processChild.js (1:2826)

execHelper

file:///C:/app/node_modules/next/dist/compiled/jest-worker/processChild.js (1:2484)

execMethod

file:///C:/app/node_modules/next/dist/compiled/jest-worker/processChild.js (1:2572)

process.messageListener

file:///C:/app/node_modules/next/dist/compiled/jest-worker/processChild.js (1:1282)

process.emit

events.js (376:20)