When connecting to DFROBOT SIM808, It is showing error that 'class DFRobot_SIM808' has no member named 'begin'

[harrysivia]

[hoerup]

@harrysivia
Since it seems to be your first ticket on github i think we should cut you some slack - BUT
for a ticket like this you should add some more context in the description
Maybe a bit on your usage - describe exactly where do you get that error, (is it at at unit compilation, linking, programming or runtime)

and a snippet of the erroring sourcecode would go a long way. If the failing source is copy-pasted, then also provide a link to where you got it from.