I am a new user.  I have never built a PCB.  I have used various schematic capture systems and then built boards using wire wrap technology. The project is a two board system that allows a 7 segment display module of either 3 or 5 digits to plug into a mother board that holds a MAX7219 7 segment decoder driver serial interface chip. The schematic capture portion worked great.  I had a couple of new user issues but worked through them and have a successful schematic for two of the three boards in the system. The PCB layout was also successful in that I have two of the three boards that look good. DRC doesn't return any errors. I cam export the BOM Gerber files generate and I can open them all. The issue is that both of the drill files, plated holes and non plated holes has a list of errors in it. I watched all the Tutorial videos, read all the text tutorials and did not find anything that would lead me to what is wrong. All the hole dimensions seem reasonable.  I even designed a very simple circuit using components from the standard EasyEDA libraries.  I used a 7400n quad chip, a LED, and a resistor This also failed with  Gerber drill file errors. I made both of the boards public.  I will need to get the path to those two boards which I will do forthwith.  I also need to get a couple lines of error message out of the drill files for y'all.  Gerber-View would not let me copy content of the file so I will do it manually. Daughter Board: [https://easyeda.com/whitehedr/daughter-board-3-digit](https://easyeda.com/whitehedr/daughter-board-3-digit) [https://easyeda\.com/editor\#id=\|44e04adaf2dc449181027bf2d2b4dadd\|6d66e7b3c80547f18c35caf1d68a9bf0](https://easyeda.com/editor#id=%7C44e04adaf2dc449181027bf2d2b4dadd%7C6d66e7b3c80547f18c35caf1d68a9bf0) Mother board links: [https://easyeda.com/whitehedr/mother-board-mcp-7seg-disp](https://easyeda.com/whitehedr/mother-board-mcp-7seg-disp) [https://easyeda\.com/editor\#id=\|0a176ef2744a40639021ff2c6305203f\|c6c4dc379acf46fab4069d3ea5627c72](https://easyeda.com/editor#id=%7C0a176ef2744a40639021ff2c6305203f%7Cc6c4dc379acf46fab4069d3ea5627c72) Gerber Drill file errors: Unexpected char 0x3 < < Unexpected char 0x4C