React Mantra Offline app


After reading and following Ken Rogers very good book: Meteor + React; we successfully started the creation of a new application using Mantra amazing architecture.

But unfortunately we reached about 40% of total development and tested yesterday our new app but in an offline behavior. In order to achieve it I installed GroundDB and Appcache:

meteor add appcache
meteor add ground:db

After changing all Mongo.Collection to Ground.Collection, we suddenly got weird errors like:

TypeError: Cannot read property ‘context’ of null
TypeError: Cannot read property ‘Vendedor’ of undefined

It seems like Mantra or React cannot be used at all in an offline manner.

Thanks in advance for your help.