# Unable to identify minimum trace spacing from Gerber file

I designed different PCBs using KiCAD, exported gerber and drill files and uploaded those to JLCPCB. However, I get the following warning:

Can not identify the minimum trace spacing

As far as I can see, the minimum trace spacing is set to 0.2 mm by specifying that value for each NetClass. The DRC control is then referring to the given NetClass specification.

I assume that the DRC is only affecting the PCB design inside KiCAD which, for sure, is the basis for Gerber file export, but might not necessarily export the minimum trace spacing setting to the Gerber files.

How can I double-check the minimum trace spacing based on the exported Gerber files? Could I even ignore this warning regarding the minimum trace spacing since this should be correct by means of DRC?