Sorry, it says "there is no symbol"

Hm. Must've been a temporary bug. Not sure what caused it. Fixed by duplicating the schematics and deleting it.

Meh, still doesn't work. When I hit export, some ratlines don't show. :/

I think the problem may be that the OUT connector is very, very slightly off grid in the schematic. (You may have accidentally hit the G key and turned grid snap off for a while, nudged the item and then turned snap back on again the same way). Make sure you have grid snap turned on: **Properties > Canvas Attributes > Snap => Yes** then delete (not cut, Ctrl+X) the OUT connector then place a **new** instance of it. (Cut and pasting it just places it back in a new place but still off grid.) Save the schematic and then try Convert to PCB again. That fixed it on my local copy of your schematic:

Hi, AndyFierman is right, you create a not good OUT connector. The Pin is not right snaped. But his link is private, check my link

Okay, thank you! I'll try it. Yea, I sometimes hit g automatically. I am a Blender user and you hit g to move stuff around there.

I'm an LTspice user and the G key places a ground connection ... You can imagine the chaos that could cause when drawing a schematic! :)