KiCad "Global label only appears once in the schematic"
KiCad electrical rule check (schematic) message: Global label only appears once in the schematic (single_global_label in kicad-cli reports).
What it means
A global label connects every place in the design that uses the same name. If a name appears only once, there is nothing for it to connect to, which usually means a typo or a missing label on another sheet.
Common causes
- A misspelled global label.
- The matching label was deleted or uses a local label instead.
How to fix it
- Find where the signal should go and add the matching global label, or fix the spelling.
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Checked against KiCad 10's source and documentation. Last reviewed 2026-11-07.
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