Unable to build, with TypeError

I’ve got a Meteor app that has only one page, which redirects to a web page, where my app really resides.

I deployed my app with success 2 months ago. Now, I needed to add a package, meaning I had to rebuild my app to deploy it. I added the package, then updated Meteor.

Deploying via Xcode, by running meteor run ios-device works fine.

But, running build... now fails. The error starts with this:

While building Cordova app for platform Android:

TypeError: Cannot read property ‘find’ of undefined

at Object.resolveParent


Where do I start looking to resolve this?