I am using create-react-app for a project. I installed various eslint plugins etc, however, we all know that create-react-app already comes with certain dependencies that are not shown in package.json.
I want the newest eslint version which is currently 5.3.0. Create-react-app comes with 5.16.0. WITHOUT EJECTING, how do I bring this dependency to the newest version without breaking everything?
I get the following error:
The react-scripts package provided by Create React App requires a dependency:
"eslint": "^5.16.0"
Don't try to install it manually: your package manager does it automatically.
However, a different version of eslint was detected higher up in the tree:
:\node_modules\eslint (version: 5.3.0)
Things in package.json will take precedence so if you upgrade version of eslint, react-scripts should always take the latest version.
There is a small loophole though. If you fiddle too much with dependencies you might get the warning about mismatch version by react-scripts. To avoid that you can create .env file and can specify the following.
SKIP_PREFLIGHT_CHECK=true
I just solved this issue, the error says:
The react-scripts package provided by Create React App requires a dependency:
"eslint": "5.16.0"
but also says you have another version at package.json that's
\node_modules\eslint (version: 5.3.0) in my case was 6.1.0
so my solution was:
I searched for the dependency called eslint and updated the version similar to Create React App expected "eslint": "^5.16.0" at package.json
Then run npm install and now you can run npm start... if you have troubles with slint-plugin-import just update the version as well.
Related
I've developed with React for a long time but I've only recently tried my hand at publishing packages.
A dependency of the package I'm working on causes issues if there are conflicting React installations between the package and the project it's being installed into. (The package is react-query)
How do I handle this situation?
Ideally I'd like the two versions to be the same as React 17.x and React 18.x have weird type changes which causes issues when being used together. But I'm honestly completely lost.
Googling doesn't seem to bring up anything I can use.
You should specify react as a peer dependency in your lib package.json file:
"peerDependencies": {
"react": ">= 17"
}
When encountering a peer dependency, npm will check the dependencies of the project that is using your lib:
If these include react matching the version requirements, then nothing else needs to be done
If a suitable version of react was not found, then npm will install the latest matching version
Behavior can be different with older versions of npm and only a warning will be printed in the console during npm install.
I installed eslint in my react project to fix all the eslint errors. I fixed all the errors, however, I can't npm start the project. When I do that, I get this error, and some steps to uninstall all the eslint dependencies. I want to run the project with eslint dependencies.
Please let me know how to do this?
Error Message:
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:
"eslint": "^7.11.0"
Don't try to install it manually: your package manager does it
automatically. However, a different version of eslint was detected
higher up in the tree:
My guess would be that you installed eslint#v8 and since create-react-app doesn't support it yet (reference) it causes this error.
Downgrading to eslint v7 should fix it.
Create react app already comes bundled with eslint and by installing it in the project dependencies, you are in effect try to load in conflicting versions, you shouldn't need eslint inside of your own package.json.
HOWEVER
If you want to override eslint and start customising your react install you are more than welcome to eject (npm run eject), but bear in mind that ejecting your application will mean you will need to maintain dependencies going forwards.
You can read more about ejecting here - https://create-react-app.dev/docs/available-scripts/
TLDR:
how can I instruct storybook to use babel-loader v8.1.0 OR force react-scripts to use babel-loader v^8.2.2 ?
Details
I Develop a lib with ./example folder which is itself project created with create-react-app. I wanted to add storybook in addition to the normal example pages, so I installed storybook.
after installing storybook I can no longer start the example project with yarn start or the story book with yarn storybook.
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:
D:\Eliav\projects\git projects\react-xarrows\examples\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.
well I know what the issue but I don't know how to fix it:
I'm using react-scripts v4.0.3 which for unknown reason requiring exactly babel-loader v8.1.0. i can see this it in yarn.lock:
react-scripts#^4.0.1:
version "4.0.3"
...
dependencies:
...
babel-loader "8.1.0"
and storybook requiring babel-loader v8.2.2 or above:
"#storybook/builder-webpack4#6.2.9":
version "6.2.9"
...
dependencies:
...
babel-loader "^8.2.2"
already tried
what is written in the error above.
hoped that yarn upgrade would upgrade babel-loader from v8.1.0 to v8.2.2 but it does not work because react-scripts require exactly v8.1.0
a workaround that worked
Create a .env file in your project directory and include SKIP_PREFLIGHT_CHECK=true in the file.
but I want to avoid it. is it possible?
So for anyone to whom this is still unclear.
I used create-react-app to create a new app
I added storybook using npx sb init
then they clashed.
SOLUTION:
yarn add babel-loader#8.1.0
UPDATE:
The error you often see is that CRA (create-react-app) relies on specific dependencies (e.g. for webpack or babel).
What can also be done is you specify which versions those dependencies must resolve to, based on the error messages
This can be done using the resolutions field in package.json, e.g.:
"resolutions": {
"babel-loader": "8.1.0",
"webpack": "4.x.x",
}
After this all will work Fine.
2 Links to consider https://github.com/facebook/create-react-app/issues/10123
and https://github.com/storybookjs/storybook/issues/4764#issuecomment-740785850
Seems that most people are installing the package to get it to work even thou it says not to install in manually.
So try:
yarn add babel-loader#8.1.0
I have an issue that I cannot solve.
I'm using ESLint in VSCode for my all projects.
Now I created a new react app but when I run it (npm start or yarn start), it throws an error.
React app use ESLint 5.12.5, is lower version of mine.
I tried following the steps in the suggestion but ... it's not fixed.
Can anyone solve my issue?
I tried npm uninstall -g eslint, npm uninstall eslint, npm i ...bla..bla, removed my ESLint extension in my VSCode, and re-created react app. But the error has not been fixed.
I checked eslint -v, it said 5.14.1, but in the error notice, vscode said version 5.16.0 is in node-modules ##.
This is full error notice when I try yarn start or npm start:
> homework02#0.1.0 start E:\Extenal Code\Hoc JS\ReactJS-iViettech\homework02
> react-scripts start
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:
"eslint": "5.12.0"
Don't try to install it manually: your package manager does it automatically.
However, a different version of eslint was detected higher up in the tree:
E:\Extenal Code\Hoc JS\node_modules\eslint (version: 5.16.0)
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 "eslint" 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 E:\Extenal Code\Hoc JS\node_modules\eslint is outside your project directory.
For example, you might have accidentally installed something in your home folder.
7. Try running npm ls eslint in your project folder.
This will tell you which other package (apart from the expected react-scripts) installed eslint.
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.
I just solved this issue, the error says:
The react-scripts package provided by Create React App requires a dependency:
"eslint": "5.12.0" (in my case "^5.16.0")
but also says you have another version at package.json that's
E:\Extenal Code\Hoc JS\node_modules\eslint (version: 5.16.0) in my case was 6.1.0
so my solution was:
I searched for the dependency called eslint and updated the version similar to Create React App expected "eslint": "^5.12.0" (in my case "eslint": "^5.16.0") at package.json
Then run npm install and now you can run npm start... if you have troubles with slint-plugin-import just update the version as well, additional you can try installing locally instead of global with --save.
I believe this is an ongoing issue with create-react-app and eslint as detailed at:
https://github.com/wesbos/eslint-config-wesbos/issues/17
There are a number of suggestions there, though I'm hoping they will put a more permanent fix in place.
In my case it works like below:
Create New Project or clone form vcs.
Create .eslintrc.json file by yourself. Do not use Ctrl+Shift+P ->Eslint:create eslint configuration.
Try searching for eslint and change the version to the required version in the package.json file of eslint. 5.12.0 in your case.
Just try clearing cache and everything will come into normal usage you can use npx create-react-app project-folder-name, this worked for me.
Use this cmd in your terminal
cmd -> npm cache clean —force
there is different process to make it work just have to follow two installations for the future projects too if you like you can use this too and can work for your projects, cmd line is mentioned below :
cmd 1-> create-react-app my-app --scripts-version #nomoreanalog/react-scripts-eslintless
cmd 2-> npm install --save-dev babel-plugin-styled-components
In my initial react application (created by react-native init project_name). In my project folder, I install my ESLint locally by yarn add eslint --dev.
Then I initialize my configuration by ./node_modules/.bin/eslint --init (with Airbnb style guide, using React, and JSON configuration file format). The installed eslint is disappeared in ./node_modules/.bin folder.
Before initialization:
ls ./node_modules/.bin
acorn eslint jest-runtime node-pre-gyp semver
atob esparse js-yaml nopt sshpk-conv
babylon esvalidate jsesc pegjs sshpk-sign
color-support handlebars json5 rc sshpk-verify
detect-libc image-size loose-envify react-native uglifyjs
envinfo import-local-fixture metro regjsparser uuid
escodegen is-ci mime rimraf watch
esgenerate jest mkdirp sane which
After initiliazation:
ls ./node_modules/.bin
babylon esparse esvalidate jsesc loose-envify semver
What am I missing?
Platforms: macOS, react-native-cli: 2.0.1, react-native: 0.54.2
This is caused by a bug in NPM 5 where npm install will delete almost all of your dependencies. This was the relevant issue. Even though you are using yarn, eslint will use npm under the hood to install the dependencies it needs, and thus will run into the aforementioned bug.
This has very recently been fixed in npm >= 5.7.1, so you will need to upgrade npm and then reinstall all of your modules.
Personally, I'd just recreate the entire project from scratch since it doesn't seem like you've done anything yet. It would be a lot more straightforward than trying to fix things.
By upgrading, you will also be able to use react-native-cli without error as prior to v5.7.1, you were actually supposed to use NPM 4. See this bug.