# MANIFEST_EXTRACTION_TIMEOUT: Component declaration took too long

> Component declaration took too long

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| Severity | Fault                         | Stage                 |
| -------- | ----------------------------- | --------------------- |
| error    | customer (the source package) | component declaration |

## What it means

The builder loads the component module to read its declaration, and loading it did not finish in time: a loop or heavy work runs when the module is imported.

## How to fix

Do no work at the top level of the module: move it into render, an event handler or useEffect.