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KICAD ERC

KiCad "Wires not connected to anything" ERC warning

KiCad electrical rule check (schematic) message: Wires not connected to anything (wire_dangling in kicad-cli reports).

What it means

A wire segment touches no pin, label or other wire. It is usually a leftover from editing, but it can also be the end of a connection you meant to make.

Common causes

  • Leftover wires after moving symbols.
  • A wire that ends just short of a pin.

How to fix it

  1. Delete the stray wire, or drag its end onto the pin it was meant for.

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Checked against KiCad 10's source and documentation. Last reviewed 2026-11-07.

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