Error validating package name

I'm a new user, but coding for 20+ years, working from what appears to be your main Getting Started walkthrough at https://cordova.apache.org/docs/en/latest/guide/cli/

{{C:\Users\User\src\izel (master)
λ cordova create com.izelplants.Maps MapMaker
Creating a new cordova project.

C:\Users\User\src\izel (master)
λ cd com.izelplants.Maps\

C:\Users\User\src\izel\com.izelplants.Maps (master) (mapmaker@1.0.0)
λ cordova platform add android
Using cordova-fetch for cordova-android@~6.3.0
Adding android project...
Error: Error validating package name. Package name must look like: com.company.Name

C:\Users\User\src\izel\com.izelplants.Maps (master) (mapmaker@1.0.0)
λ}}