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24 lines
592 B
Plaintext
24 lines
592 B
Plaintext
---
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title: Promise In Next Config
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---
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## Why This Error Occurred
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The webpack function in `next.config.js` returned a promise which is not supported in Next.js. For example, below is not supported:
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```js filename="next.config.js"
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module.exports = {
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webpack: async function (config) {
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return config
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},
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}
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```
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## Possible Ways to Fix It
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In Next.js versions above `12.0.10`, `module.exports = async () =>` is supported.
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For older versions, you can check your `next.config.js` for `async` or `return Promise`.
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Potentially a plugin is returning a `Promise` from the webpack function.
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