Can I continue to generate a netlist despite ERC errors?
The grid you set in EEschema is too fine.

Set it to 100mil (right click in empty space, grid.. 100mil) and then re-place the symbols (pick up with [M] and drop again). Usually the symbols that ship with the KiCAD libraries have pins on a 100mil grid. If you use these you don't need anything else.

Also to check if a device has been connected hover with the mouse over it, hit [G] and move the mouse. If the wires are connected they will 'rubberband' with the device when you move your mouse.
Hit [ESC] to abort the special move operation with 'rubberband' wires.

And running a netlist with unconnected tracks/devices is pointless as you need this to be 100% error free to be able to help you during layout.