VTTF-0015: InvalidSubTypeConversion

NOTE

subTypeDocuments() or convertSubTypes() was called without a module id or a bare type key, asked to convert a type into itself, or run where foundry.data.operators.ForcedReplacement does not exist. Foundry refuses a document type change without that operator, and drops the rest of the update with it.

Field	Value
Code	VTTF-0015
Name	InvalidSubTypeConversion
Package	@vttforge/core
Source	packages/core/src/errors/registry.ts

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This page comes from the registry entry. We are still writing the root causes, common triggers and code samples for each code; the message above is what the runtime throws.

packages/core/scripts/codegen-errors.mjs builds this file from the registry at packages/core/src/errors/registry.ts. Do not edit by hand; re-run pnpm --filter @vttforge/core build after editing the registry.