---
title: MARKLESS_CAPTURE_UNSUPPORTED_VALUE
description: "Cannot capture local <bindingKindLabel> in lazy symbol: a Markless compiler error."
sidebar: { hidden: true }
search: { keywords: ["CAPTURE_UNSUPPORTED_VALUE","capture unsupported value","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_CAPTURE_UNSUPPORTED_VALUE: Cannot capture "<name>" in lazy <kind> symbol "<symbolId>" because local <bindingKindLabel> values cannot cross a resume boundary.
Lazy symbols run after browser resume. Captures must be graph references, element handles, props/shared values, module imports, or serializable constants.
https://markless.dev/errors/MARKLESS_CAPTURE_UNSUPPORTED_VALUE
```

Words in angle brackets change from case to case.

## How to fix it

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/capture-analysis.ts](https://github.com/compiled-run/markless/blob/main/packages/compiler/src/passes/capture-analysis.ts)

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