The version number is one Weave does not know

The header declares a format version Weave has never heard of.

example of a mistake download the file

The pattern

---
weave-script-version: 99
---

# A phase

This file declares a spec version v1 does not handle.

What Weave sees

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

{
  "code": "unsupported-spec-version",
  "message": "parseV1 received weave-script-version: \"99\"."
}