Create-React-App 部署到 Heroku 失败，并显示 `react-scripts: not found` [英] Create-React-App deployment to Heroku failed with ` react-scripts: not found`
问题描述
我们正在使用 Create-React-App 开发 ReactJS 应用程序，该应用程序由我们的 Node/Express 服务器提供服务，该服务器也提供 API 服务.我们使用 node/JS buildpack 将整个服务器部署到 Heroku 并尝试从节点 package.jsonpostinstall 脚本中获取 CRA 构建步骤 npm run build/code> 文件，如@mars 本期所建议.
We're developing a ReactJS application using Create-React-App, that is served from our Node/Express server that also serves API's. We deploy the whole server to Heroku using node/JS buildpack and trying to get the CRA build step npm run build in postinstall script from the node package.json file as suggested by @mars in this issue.
问题是 Heroku 部署因此错误而失败.请注意，此错误有时在本地发生在我身上，但是来自 web_app 的 npm install 正在解决该问题，但在 Heroku 中运行时则不然.我有两个相关的问题:
The issue is that Heroku deployment is failing with this error. Note that this error happen to me sometime locally but then a npm install from the web_app is solving the issue, but not when run in Heroku. I have two related questions:
- 如何将同时提供 API 和 Create-React-App 应用程序的 Node/Express 应用程序部署到 Heroku?我可以提交我的构建目录，但这确实不是正确的方法.
- 为什么反应脚本消失了，我必须多次运行
npm install.
推荐答案
@johnnycon -
@johnnycon -
这正是问题所在，我在此Mars的答复://github.com/mars/create-react-app-buildpack/issues/32#issuecomment-276081892" rel="noreferrer">github 问题帖子:
This was exactly the issue and I've received the answer from Mars in this github issue post:
@philjoseph，react-scripts(默认情况下)是 CRA 应用程序的 devDependency，但 Heroku Node buildpack 的环境 NODE_ENV=production 导致 npm install 跳过 devDeps.
@philjoseph, react-scripts is (by default) a devDependency for CRA apps, but Heroku Node buildpack has environment NODE_ENV=production which causes npm install to skip devDeps.
也安装这些 devDeps:
To install those devDeps too:
npm install --only=dev &&npm 安装 &&npm 运行构建
npm install --only=dev && npm install && npm run build
他还指出了这个优秀的 repo:https://github.com/mars/heroku-克拉节点
He also pointed to this excellent repo: https://github.com/mars/heroku-cra-node
我遵循了这个，它就像一个魅力:)
I followed this and it works like a charm :)
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