I am on video 4 in the 3rd Person Powerup C++ Tutorial and I am getting errors

Development Programming & Scripting
4

I got this - Error 3 error C2084: function ‘ABatteryPickup::ABatteryPickup(const FObjectInitializer &)’ already has a body

And it referrs to this line -

ABatteryPickup::ABatteryPickup(const FObjectInitializer& ObjectInitializer) : Super(ObjectInitializer)