I have been using the following doc from Microsoft to package an extension. Was able to generate appmanifest.xml file using manifoldjs. The problem I am facing is with the last command wherein after some modifications in the xml file I have to run this command manifoldjs -l debug -p edgeextension package <EXTENSION NAME>\edgeextension\manifest\.
Below is the commandline output which shows I am unable to do aything further. The execution pauses (doesn't terminate/finish) and nothing happens.
$ manifoldjs -l debug -p edgeextension package MSGappShortName/edgeextension/manifest/
[debug] manifoldjs : Loading platform module: manifoldjs-edgeextension
[debug] manifoldjs : Packaging the 'Microsoft Edge Extension Platform' app...
[info ] edgeextension: Packaging the Microsoft Edge Extension Platform app...
I just ran the same commands with the new version (renamed to PWABuilder), without issue. https://github.com/pwa-builder or npm-install pwabuilder.