I think these are pretty basic questions but it is my first board on Kicad. I am about to order some board on JLCPCB and It is giving me two warnings. The first warning is “P-0001-DC-DC-5V-3.3V-Edge_Cuts.gbr(Board Outline Layer):Gerber file with a board outline”. I have seen on some tutorials that to send the dimensions of the board there is a specific gerber file called outline layer ( or something similar), on the other hand I have also seen on a tutorial from Digikey that Edge-cuts gerber file is accepted to define the dimensions, I think JLCPCB will make the board even with the warning but I wonder if there is a better way to define the dimensions of the board with a different gerber file without getting a warning.
The second warning is as follows: " P-0001-DC-DC-5V-3.3V-B_Paste.gbr(null): Non-gerber274X/excellon formats". It seems like it has generated the gerber but it is empty and I think it is because my board “doesn’t need solder paste on the bottom side” but I would need some reassurance as I’m not 100% sure on this ( I think I will have to put the paste manually on Kicad). The bottom side is filled with copper, but that copper is not connected to any net and I don’t have any smd component on the bottom side, I just have some pads from through hole components that are placed on the top side. I wonder if this is the reason why I have got a bottom paste layer empty?. I think I need to put some solder paste on that layer as when I solder the through hole component they could get connected to the copper incorrectly and therefore shorted between each other.
Thanks in advance for you help.