YarnBuild-Storybook的Babel-loader问题
我有一个新的 create react app 项目,使用 typescript 模板:
yarn create react-app my-app --template typescript
为此,我添加了 Storybook:
npx sb init
这给了我一个有效的故事书实例,但是,yarn build现在是错误的。
$ react-scripts build
There might be a problem with the project dependency tree.
It is likely not a bug in Create React App, but something you need to fix locally.
The react-scripts package provided by Create React App requires a dependency:
"babel-loader": "8.1.0"
Don't try to install it manually: your package manager does it automatically.
However, a different version of babel-loader was detected higher up in the tree:
/home/michael/pgit/my-app/node_modules/babel-loader (version: 8.2.2)
Manually installing incompatible versions is known to cause hard-to-debug issues.
If you would prefer to ignore this check, add SKIP_PREFLIGHT_CHECK=true to an .env file in your project.
That will permanently disable this message but you might encounter other issues.
To fix the dependency tree, try following the steps below in the exact order:
1. Delete package-lock.json (not package.json!) and/or yarn.lock in your project folder.
2. Delete node_modules in your project folder.
3. Remove "babel-loader" from dependencies and/or devDependencies in the package.json file in your project folder.
4. Run npm install or yarn, depending on the package manager you use.
In most cases, this should be enough to fix the problem.
If this has not helped, there are a few other things you can try:
5. If you used npm, install yarn (http://yarnpkg.com/) and repeat the above steps with it instead.
This may help because npm has known issues with package hoisting which may get resolved in future versions.
6. Check if /home/michael/pgit/my-app/node_modules/babel-loader is outside your project directory.
For example, you might have accidentally installed something in your home folder.
7. Try running npm ls babel-loader in your project folder.
This will tell you which other package (apart from the expected react-scripts) installed babel-loader.
If nothing else helps, add SKIP_PREFLIGHT_CHECK=true to an .env file in your project.
That would permanently disable this preflight check in case you want to proceed anyway.
P.S. We know this message is long but please read the steps above :-) We hope you find them helpful!
所以babel-loader不在我的任何package.json文件中,而且 babel 都应该由 CRA 处理(因此警告不要自己添加。)
我可以使用 SKIP_PREFLIGHT_CHECK - 但这掩盖了潜在的冲突,让两个库先决条件一起玩的正确方法是什么?
回答
这是一个已知问题。
如果您使用纱线,则可以使用分辨率轻松绕过它。将以下内容添加到 package.json 以允许 yarn 解析 babel-loader 版本 8.1.0
"resolutions": {
"babel-loader": "8.1.0"
},
之后,请确保运行yarn install以刷新您的依赖项并更新yarn.lock文件
- Works like a dream thanks, .```env``` removed, balance restored to the force.