# BUILD_TIMEOUT: Build took too long

> Build took too long

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

## What it means

The whole build took longer than the build timeout, usually because the source package is very large or loading the module does heavy work.

## How to fix

Make the package smaller and do no work at the top level of the module; then publish again.