In order to assist you, I will require some further information about the issue you are experiencing. For example:
- By saying "The filesystem is returning a null value", do you mean that the wcoFileSys object inside the success callback is null? And if so, please share the actual content of success function, in order to replicate the behavior on my side.
- Does the issue occur on actual devices, or in the AppBuilder simulator? If on devices, how are you deploying it, via the AppBuilder Companion apps, or as Application packages?
- Does the issue reproduce on all of the supported, by AppBuilder platforms (iOS, Android, WP8), or on a specific one? If specific, please let me know which that is.
I am looking forward to your reply.