A bug in the Adobe PhoneGap phone-gapcli v7.1.0 was causing the PhoneGap LiveView Server in Lianja Phone/Tablet App Views to fail to start.
This has been fixed in phonegap v7.1.1.
To check whether you are running phonegap v7.1.0, issue the following command in Windows command window/powershell, Linux/macOS terminal:
To upgrade to the latest phonegap version (at time of writing v7.1.1):
npm install -g phonegap
To upgrade specifically to v7.1.1:
npm install -g email@example.com