road-source-invalid
Since 0.6
the road file is there but is not a valid road (bad JSON, too few points, a width or step out of range), so it was not built
| Severity | warning |
Meaning
the road file is there but is not a valid road (bad JSON, too few points, a width or step out of range), so it was not built
Fix
read the message: it names the field; see docs/SPEC.md, Roads