From 842541250fb6aa12b4c24316cb4ec736739e26ba Mon Sep 17 00:00:00 2001 From: Tim Neutkens Date: Wed, 13 Jul 2022 10:20:51 +0200 Subject: [PATCH] Add error when createServerContext is not available (#38578) Ensures you get a clearer error when createServerContext is missing. ## Bug - [ ] Related issues linked using `fixes #number` - [ ] Integration tests added - [ ] Errors have helpful link attached, see `contributing.md` ## Feature - [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR. - [ ] Related issues linked using `fixes #number` - [ ] Integration tests added - [ ] Documentation added - [ ] Telemetry added. In case of a feature if it's used or not. - [ ] Errors have helpful link attached, see `contributing.md` ## Documentation / Examples - [ ] Make sure the linting passes by running `pnpm lint` - [ ] The examples guidelines are followed from [our contributing doc](https://github.com/vercel/next.js/blob/canary/contributing.md#adding-examples) --- packages/next/server/app-render.tsx | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/packages/next/server/app-render.tsx b/packages/next/server/app-render.tsx index 993495b9e6e6..31ca747f3b75 100644 --- a/packages/next/server/app-render.tsx +++ b/packages/next/server/app-render.tsx @@ -385,6 +385,13 @@ export async function renderToHTML( renderOpts: RenderOpts, isPagesDir: boolean ): Promise { + // @ts-expect-error createServerContext exists in react@experimental + react-dom@experimental + if (typeof React.createServerContext === 'undefined') { + throw new Error( + '"app" directory requires React.createServerContext which is not available in the version of React you are using. Please update to react@experimental and react-dom@experimental.' + ) + } + // don't modify original query object query = Object.assign({}, query)