[Solved] Cordova: Project name must not begin with a number

I have a old mobile app on Google Play called “25deAbril”.

I had to fix some bugs, and since I needed to bump the Android SDK API level I upgraded meteor to 1.10.2.

But when building the app, I got the following error:

While adding platform Android to Cordova project:
Error validating project name. Project name must not begin with a number

To fix I had to edit the following file and comment the test on function validateProjectName (line 229):

.meteor/local/cordova-build/node_modules/cordova-android/bin/lib/create.js

Everything is working now.