The version line is missing

The header is there, but it does not say which version of the format the file uses.

example of a mistake download the file

The pattern

---
title: No version declared
---

# A phase

Front matter is present but `weave-script-version` is missing.

What Weave sees

Weave can't read this file. Here is the message it shows so you know what to fix.

{
  "code": "missing-spec-version",
  "message": "weave-script-version is required in front matter."
}