Type Error: from onEndReached prop

[bk973]

TypeError: onEndReached().then is not a function. (In 'onEndReached().then(p)', 'onEndReached().then' is undefined)

Does this error mean that the function i supply to onEndReached prop is supposed to be asynchronous?

Need some help on this please, deadline is in a few days!

[le-blip]

Yes it is supposed to be async, no idea why though