---
title: MARKLESS_ROUTE_ARTIFACT_REGISTERED_LATE
description: "Client route artifact registered after its primary module transformed: a Markless compiler error."
sidebar: { hidden: true }
search: { keywords: ["ROUTE_ARTIFACT_REGISTERED_LATE","route artifact registered late","markless error"] }
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---

**Error** from the compiler, while it builds your `.tsrx` files.

## What happened

Markless prints the message, the reason, and a suggestion:

```text
MARKLESS_ROUTE_ARTIFACT_REGISTERED_LATE: MARKLESS_ROUTE_ARTIFACT_REGISTERED_LATE: Client route artifact <source> was registered after its primary module transformed. Register every production route artifact before transformation begins.
The primary module has already been compiled without knowing it composes a route artifact, so its emitted graph would be wrong.
Register every production route artifact before transformation begins.
https://markless.dev/errors/MARKLESS_ROUTE_ARTIFACT_REGISTERED_LATE
```

Words in angle brackets change from case to case.

## How to fix it

Start with the suggestion in the message above.

This page has no guide yet. [Help write it](/contributing/improve-these-docs).

## Where it comes from

`@markless/compiler` raises this code. Source:

- [packages/compiler/src/passes/link/claim-manifest.ts](https://github.com/compiled-run/markless/blob/main/packages/compiler/src/passes/link/claim-manifest.ts)

Read [how to read a Markless error](/tooling/diagnostics), or go back to [all error codes](/errors).