Dangling wires no ERC error

[Benjamin]

Last time I have made mistake (like lot of other guys I suspect) in my schematic as I have forgotten to connect correctly GND to capacitors which are in parallel and unfortunately after ERC check there is no any error detected
I know it is a typical human error but it is very critical as we can produce invalid/buggy PCB and it could be detected easily by implementing a systematic "dangling wire" check in the whole schematic.

I have reproduced that with a very simple sample using latest KiCad 5.1.2-1 in Windows 7 64bits (I suspect it can be reproduced with any version of KiCad as such feature to detect dangling wire in ERC is not implemented today)

See picture of schematic for more details
https://hydrabus.com/kicad/KiCad_dangling_wires_no_ERC_error.png

See KiCad 5.1.2-1 project KiCad_dangling_wires_no_ERC_error.7z in attachment to reproduce this issue

[Ron Burkey (rburkey)]

I'd upvote this if there were a way to do so. The problem is particularly frustrating when you have lots of passive component pins and have to use a smaller grid size. (I have to use 25 mils.) It's very tough to find ends of wires that are dangling 25 mils from a pin. I just had to deal with 3 schematics, each having 3 such errors in them, but no problem detected by ERC. Or at least, I _hope_ there were only 3 such errors each of those schematics!

[Jon Evans (craftyjon)]

The way to upvote is to click "this affects me" in the upper left of the bug report.
Some kinds of this error can be detected, I'm planning to add it for 6.0

[Brandon Drury (brandondrury)]

Adding the detection of floating wires - any place a green square is present - to the schematic would be highly helpful to me. While not everyone seems to view the green square as an error, for those of us who implement a strict "no-green-square" policy in our schematics, it would be nice if we were alerted if a green square did happen to show up.

I believe this is of extra importance in schematic software like Kicad which does not automatically adjust the wires if a component is moved. Some programs redraw the wires when components are moved and preserve the intent of the user. I have no problem with the Kicad approach, but it does increase the probability that I will inadvertently alter the schematic when clean it up for finalization.

Seeing green square alerts in the ERC solves all of this.

[KiCad Janitor (kicad-janitor)]

KiCad bug tracker has moved to Gitlab. This report is now available here: https://gitlab.com/kicad/code/kicad/-/issues/2393