Missing package "metro" in the project at D:\ReactNative\FirstProject. This usually means react-native is not installed. Please verify that dependencies in package.json include "react-native" and run yarn or npm install.
Error: Missing package "metro" in the project at D:\ReactNative\FirstProject. This usually means react-native is not installed. Please verify that dependencies in package.json include "react-native" and run yarn or npm install.
enter image description here
I had the same issue after installing
react-native-paper
After follow this steps all worked again
Remove node_modules folder.
Install all dependencies again, run npm install. If show any error Remove package-lock.json.
Run npm start again.
Happy coding.
you don't really need to delete node_modules folder.
just update it by typing:
1/ npm : npm install
or
2/ yarn : yarn install
in your terminal. That will update the node_modules folder content as well as creating all missing files without the need to reinstall it from scratch.
I deleted the folder "node_modules" then run "npm install" again. It worked for me.
I had this issue after I installed react-native-svg
Maybe there is some sort of naming conflict is causing this error? Deleting node_modules and running npm install again fixed it for me.
I was getting the same problem, after running 'npm install --global expo-cli' it solved the issue or you can run npm install
I had this issue after installing #react-native-community/hooks
You don't need to delete any node_modules folder.
Installing react-native again solved the problem for me.
npm i react-native
Try Using npm i metro
Worked for me
try to start the project from main folder created by expo init.
i.e opening the project folder directly on you visual studio
It happened to me when you tried install #react-native/bottom-tabs. But I've installed this package with npm, so I removed this package and installed it again with yarn and it fix my problem with no need to remove node_modules.
You are getting this problem based on how you created the program. So, when I created it from the terminal, following this instruction: https://reactnative.dev/docs/environment-setup it worked, but when I tried to create the program inside of the terminal in an existing project, I got the error.
installing expo and expo start working for me.
I experienced the same issue, I'm using expo managed workflow, and cleaning cache has worked for me.
expo r -c is the command I used.
Related
I cloned a react application onto my system and ran following commands
npm install -g create-react-app
npm install --save react react-dom
After that i ran
npm start
But it threw the above mentioned error, It is working fine on my other system from which i pushed it on github. But it is not working on any other system after cloning whether windows or mac.
Check if node_modules directory exists. After a fresh clone, there will very likely be no node_modules (since these are .gitignore'd).
Solution
run npm install (or yarn) to ensure all deps are downloaded.
Alternative Solution
If node_modules exists, remove it with rm -rf node_modules and then run npm install (or yarn).
Tried all of the above and nothing worked so I used npm i react-scripts and it worked
I had similar issue. In my case it helped to have Yarn installed and first execute the command
yarn
and then execute the command
yarn start
That could work for you too if the project that you cloned have the yarn.lock file. Hope it helps!
In package.json, I changed
"start": "react-scripts start"
to
"start": "NODE_ENV=production node_modules/react-scripts/bin/react-scripts.js start"
I hope this solves the problem for some people. Although the other solutions above seem not to work for me.
you should not install react-scripts globally, for me this fixed the problem:
npm install --save react react-dom react-scripts
if this still dont work :
update to latest npm version : npm install -g npm#latest
delete node_modules directory
reinstall all dependencies : npm install
https://github.com/facebookincubator/create-react-app
npm install -g create-react-app
create-react-app my-app
cd my-app/
npm start
You install the create-react-app package globally.
After that you run it and create a project called my-app.
Enter your project folder and then run npm start. If that doesn't work try running npm install and then npm start. If that doesn't work as well, try updating your node version and/or npm.
I had this problem for ages and I eventually found my solution by sheer chance.
Turns out, you can't have spaces or wacky characters in any folder names.
e.g.
~/projects/tutorial/ReactJS/JavaScript Framework: ReactJS/app-name
won't work because JavaScript Framework: ReactJS contains spaces.
In general, it's probably not great practice to be using spaces in folder/file names anyway but I hope this saves someone at least 4 hours of trial and error.
Also, any non-alphanumeric characters should be avoided.
This error occurs when you Install package with npm install instead of yarn install or vice-versa.
using npm i --legacy-peer-deps worked for me.
I do not know specifically which operation out of the following it performed:
Installing the peer dependencies' latest stable version.
Installing the peer dependencies' version which the core dependy you are installing uses.
But I think it performs the latter operation. Feel free to let me know if I'm wrong ^-^
npm install --save react react-dom react-scripts
Above command worked for me.
This boggles me time to time when I have a fresh start with create-react-app, please make sure your NODE_ENV variable is set to development not production, as devDependencies in your package.json will not be installed by npm install.
If you are having this issue in a Docker container just make sure that node_modules are not added in the .dockerignore file.
I had the same issue sh1 : react scripts not found. For me this was the solution
Just ran into this problem after installing material-ui.
Solved it by simply running npm install again.
Just doing an Yarn install solved the problem for me
Deleting package-lock.json and node_modules then npm install worked for me.
If none of the other answers work properly (after updating the npm etc). I would strongly recommend you to install the project on your desktop.
create-react-app project_name
The solution that worked for me is below. Try creating React app with this command.
create-react-app react-app --scripts-version 1.1.5
this worked for me.
if you're using yarn:
delete yarn.lock
run yarn
and then yarn start
if you're using npm:
delete package-lock.json
run npm install
and then npm start
If anyone still have this problem after trying these solutions: check your project path as node has some issues working with spaced dir names. I changed all directories names that had spaces in their names and it worked perfectly.
solution idea taken from: https://npm.community/t/react-scripts-not-found/8574
i am using yarn BTW
You shoundt use neither SPACES neither some Special Caracters in you path, like for example using "&". I my case I was using this path: "D:\P&D\mern" and because of this "&" I lost 50 minutes trying to solve the problem! :/
Living and Learning!
If you have tried everything and nothing solved it, try to rename the directories name. react will not start if the folder's name contains uppercase letters.
After spending too much time trying all the solutions above, I can say for sure:
If you ran into this issue, check your path. If the path contains any special character or spaces just rename it and make sure that the new path doesn't have any spaces or special character. Then run it again .
delete node_modules
run npm install
after that run npm start
if above does't work
delete node_modules
delete package-lock.json
run npm install
and then npm start
if above solutions does not fixed your problem, try the following this worked for me:
if you want to start on another port or PORT command not found error then do the following steps:
open package.json file
inside script replace the start command with below
"start": "set PORT=3006 && react-scripts start"
To change the port of your app, you can also create a new file name .env in the root directory of the project and write in it PORT=3006 (then save the file). Now run your app using npm start.
I just randomly experienced this "react-scripts: command not found" error after issuing a react-scripts build request, which was previously working just fine.
A simple reboot of my system corrected the issue.
if anyone is willing to use npm only, then run this npm i react-native-scripts --save, then npm start or whatever the command you use
solution 1:
delete the package-lock.json file and then type -> npm install
solution 2:
/Users/piyushbajpai/.npm/_logs/2019-03-11T11_53_27_970Z-debug.log
like this is my debug path --> so this you will find in the console -> press on command and click on the link, you will find error line;
like this:
verbose stack Error: nest_form#0.1.0 start: react-scripts start
solution 3:
delete the node_module and npm i with fresh way.
solution 4:
go to node_module and delete jses folder and delete it, then do npm i and again start with npm start
I had issues with latest version of yarn 1.15.1-1
I've fixed it by downgrading to lower version sudo apt-get install yarn=1.12.3-1
I ran into this error after renaming the directory with the #/ symbol on macOS to match the name of my NPM package namespace.
When the NPM command looked for installed packages in my local node_modules, it couldn't find it due to the way macOS was rewriting the directory path. After renaming the directory without #/ I was up and running again.
Just You have to restore packages to solve this issue,
So just run command :
npm install or yarn install
I tried every answer but cleaning my npm cache worked..
steps:
Clean cache =====> npm cache clean force.
reinstall create-react-app =====> npm install create-react-app.
npm install.
npm start !!!
I'm trying to run my react native code from a github repository on ubuntu by using npm start and expo. When I run npm start I get the follow error:
"Cannot determine which native SDK version your project uses because the module expo is not installed. Please install it with yarn add expo and try again."
I have tried the 'yarn add expo' but that doesn't seem to work because I can't get yarn to work and it doesn't recognize 'add'. I haven't found anything on this problem either. Does somebody know what is going on?
Try npm install expo instead of yard add expo.
Note: yarn is another package manager just like npm. If you have npm installed already then you can replace yarn add with npm install always.
Just wanted to chime in that running npm install solved the problem for me. (I figured out that the problem was probably because my dependencies were not properly installed.)
When grabbing the project from a remote repository, it obviously isn't going to grab the node_modules folder (folder with all the project dependencies) because it's in the .gitignore. Why is it in the .gitignore? Because it's too big and can be easily downloaded on a local machine when needed (by running npm install).
This npm install command installs all dependencies in package.json into a local folder called node_modules, thus ensuring all my dependencies are properly installed. This then allows my project to work.
I updated npm to the latest version ->
npm install -g npm#latest
Uninstalled expo -> npm uninstall -g expo-cli --save
Deleted the .expo folder, reinstalled expo & this worked for me.
This might help for some, because I am new to rn expo. And got this error.
yarn install
Cannot determine which native SDK version your project uses because the module expo is not installed. Please install it with yarn add expo and try again.
expo init Game-Zone
× Something went wrong installing JavaScript dependencies. Check your npm logs.
Same trouble here while installing expo init. But I noticed something wrong in javascript dependencies installation, so I checked the package.json : where it had some highlighted issues on dependencies :
"dependencies": {
"expo": "~40.0.0",
"expo-status-bar": "~1.0.3",
"react": "16.13.1",
"react-dom": "16.13.1",
"react-native": "https://github.com/expo/react-native/archive/sdk-40.0.1.tar.gz",
"react-native-web": "~0.13.12"
Simple answer is :
npm install
** It will simply install pending installation or internet interrupted JavaScript dependencies will be checked or re-installed using the package.json file. If package.json is not update, then delete the whole file and restart expo init name-of-file while cross-checking internet connection **
I have the same error, but the problem isn't in expo. You should verify if you have the node-module file if not, you should run:
npm install
if that don't work you can force it by:
npm install --force.
Then run:
npm install expo
If you are using yarn, you can replace npm by yarn.
this is my case, I hope that can help someone.
This error occurs when the dependency file is missing... so you can just replace the node_modules folder which is in your Project folder
eg:
expo init <file_name>
here you will get node_modules folder
I installed bootstrap via npm install already and i tried to import it to my App.js file:
import './bootstrap/dist/css/bootstrap.min.css'
But then the app return this on the browser:
TypeError: t(...).isPlaceholder is not a function
Could someone please explain why and how to fix?
Thank you
For me, I saw these errors when I bumped #babel dependencies a few minor versions (several packages and plugins).
What helped was removing the node_modules directory and then installing all the packages again.
Remove node_modules: rm -rf ./node_modules
Install packages yarn or npm i
Run your project again
I just encountered this error.
To fix it, make sure you're not mixing up your package managers. I was using yarn, but then used npm because that's what we use at work.
you should add or install your modules using the same package manager
For me it works with a standard create-react-app structure via:
import '../node_modules/bootstrap/dist/css/bootstrap.min.css';
For us, it's a yarn bug related to using yarn link with a messy lockfile. The solution was to use yarn-deduplicate.
Prior to finding that fix, my workaround was
yarn link other-repo from main-repo
yarn install from main-repo
yarn install --check-files from other-repo
Which can be done using an alias
All I am doing is running create-react-app and cd'ing into the app, then trying to run npm/yarn start. I get the following error/output/log. I have walked through all of the suggested steps. The only thing that works is the SKIP_PREFLIGHT_CHECK=true in my .env as the last resort for both
Yarn and npm. I have recently updated to Mojave and had to reinstall my Xcode if people have had a similar experience.
Last login: Tue Oct 30 16:30:24 on ttys002
TheLAB11:~ jasonspiller$ cd repos/react-express-graphql-app/
TheLAB11:react-express-graphql-app jasonspiller$ npm start
> react-express-graphql-app#0.1.0 start /Users/jasonspiller/repos/react-express-graphql-app
> 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:
"babel-jest": "23.6.0"
Don't try to install it manually: your package manager does it automatically.
However, a different version of babel-jest was detected higher up in the tree:
/Users/jasonspiller/node_modules/babel-jest (version: 23.4.2)
Manually installing incompatible versions is known to cause hard-to-debug issues.
If 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-jest" 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 /Users/jasonspiller/node_modules/babel-jest is outside your project directory.
For example, you might have accidentally installed something in your home folder.
7. Try running npm ls babel-jest in your project folder.
This will tell you which other package (apart from the expected react-scripts) installed babel-jest.
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!
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! react-express-graphql-app#0.1.0 start: `react-scripts start`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the react-express-graphql-app#0.1.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /Users/jasonspiller/.npm/_logs/2018-10-30T23_09_42_358Z-debug.log
I just had the same problem. For some reason the package ended up in a node_modules directory in my home directory. It also gave me the exact same error for the jest package.
I'm not sure of the correct way to fix this as npm uninstall -g babel-jest and yarn global remove babel-jest do not do anything.
I fixed it by just blowing away the folders that cause the problem:
bash
rm -rf ~/node_modules/babel-jest ~/node_modules/jest
It would be great to know how those packages ended up there, and the proper way of getting rid of them, but for now just deleting the folders is enough to get CRA dev server running without skipping the preflight check.
This problem can occur if there is node_modules in a parent directory of the folder where you run the application. I solved the problem by deleting the node_modules directory.
I too faced a similar problem and was able to resolve the issue following below steps.
Create a .env file in your project root directory and add the following statement
SKIP_PREFLIGHT_CHECK=true
Save the file
Remove node_modules, yarn.lock, package.lock
Then reinstall node_modules with
npm install
This should work
The problem seems to have reappeared in create-react-app 3.0.0.
The react-scripts package provided by Create React App requires a dependency:
"babel-jest": "24.7.1"
As abisuq pointed out in https://github.com/facebook/create-react-app/issues/6756#issuecomment-489562571 adding a version resolutions into package.json temporarily fixes the problem.
"resolutions": {
"babel-jest": "24.7.1"
},
Update: It has been fixed in create-react-app 3.0.1. If upgrading is an option you can run
npm install --save --save-exact react-scripts#3.0.1
or
yarn add --exact react-scripts#3.0.1
run： npm ls babel-jest
got : babelk-jest#24.7.1 & babel-jest#24.8.0 installed
this means install tow babel-jest with diff version
run：npm uninstall babel-jest#24.8.0 fix my issue
I had this issue and finally solved it easily.
As probably you know, when we use create-react-app, Jest is configured by default and you don't need to install Jest (when we use Webpack, we can install Jest). So, if you use Create-react-app and install Jest by mistake:
Firstly uninstall it (remember that if you use: (npm install --save-dev jest), you can remove jest directly from Package.json or use: (npm uninstall --save-dev jest)
Delete package-lock.json (not package.json)
Delete the node_modules
npm install
Now you don't receive an error and you can easily use: (npm start) or (npm test)
Also, It is worth mentioning that I installed the following tools to write my test in React component:
(npm install --save-dev enzyme enzyme-adapter-react-16 jest-enzyme)
and wrote my test by using jest and enzyme. Then I easily use: (npm test)
Good Luck!
Ok I finally found a solution after trying everything. Here is what finally worked:
First of all, read the error message in the cmd from the beginning. They'll tell you what module is causing the problem. You probably have an older version installed on your computer. Example: babel-jest version 2.4.4
Go to your Node.js folder c:/Users/(your user)/node_modules and find that module and simply delete it.
Go back to the cmd and run npm start. You might get the same error. But it'll be for a different module. Just delete it the same way and repeat until it runs.
I fixed the issue by removing the node_modules folder and package-lock.json file from a folder that was higher than the root of the project. I had installed node_modules accidentally in a higher folder.
I had:
desktop/code/node_modules (remove this to fix)
desktop/code/package-lock.json (remove this to fix)
desktop/code/project/node_modules
desktop/code/project/package-lock.json
I was having this issue as well. When I tried to run the client using npm start, the error would occur, telling me that it required babel-jest: ^24.9.0.
I noticed that in my client, babel-jest was version ^24.9.0, but in my server, I had "jest": "^26.6.3".
All I had to do was change "jest": "^26.6.3" to "jest": "^24.9.0" in the server side source code, delete my package-lock.json as well as node_modules in server, npm install again, and good to go!
At first I installed these (my react version was "^17.0.2")
npm install --save-dev jest
npm install --save-dev enzyme enzyme-to-json
npm install #wojtekmaj/enzyme-adapter-react-17
After that, I had the same problem.
Then I did these steps :)
Added '.env' file in my project root directory and add:
SKIP_PREFLIGHT_CHECK=true
Removed node_modules & package.lock
npm install
npm start
I had the exact same issue.
What I tried was to create the react app outside the directory that had the node_modules folder.
After that, started the app with yarn start and didn't have the error anymore.
I had the same problem, and I fixed this issue. For some reason because node_modules on my local. I removed babel-jest & jest. After that, npm start. I'm not sure this solved incorrect but this correct for me.
I solved this issue by deleting the node_modules folder and package-lock.json file I accidentally had installed in the root of my user.
For me in Mac the path was:
Macintosh HD -> Users -> "My-user-name"
I discover that might be the problem by running npm ls babel-jest on terminal. That showed me that there was another babel-jest up in the tree.
After deleting these two I did npm install in my app where I previously had deleted the node_modules folder and package-lock.json.
Now it's running ok !
I fixed this by deleting node_module folder in the project directory
try this command and see which packages create conflicts in versions.
npm ls babel-jest
replace the conflicted packages with updated one of that package.
I tried all of written solutions above. But none of them worked. I solved problem by deleting "C:\node_modules" folder.
Then delete project node_modules and package-lock.json. Finally, npm install and start again. And it worked.
My react-scripts version is 4.0.3. The problem suddenly happened after installing a private remote package, which installed multiple babel packages in my project root's node_modules. I solved this by installing the problematic packages on the project root's level explicitly, so that they match the versions reported in the preflight check.
Following addings fixed it in my case. Your needed packages and versions may differ, you have to check the preflight report.
yarn add babel-jest#^26.6.0
yarn add babel-loader#8.1.0
For me its still a workaround, but i prefer this way instead of removing something in node_modules manually as suggested in https://stackoverflow.com/a/53093421/4840661.
This is the approach without deleting node_modules:
I recieved error like:
The react-scripts package provided by Create React App requires a dependency:
"jest": "26.6.0"
Don't try to install it manually: your package manager does it automatically.
However, a different version of jest was detected higher up in the tree:
First check the versions using:
npm ls babel-jest
In my case output was like this:
jest#27.0.3
└─┬ #jest/core#27.0.3
└─┬ jest-config#27.0.3
└── babel-jest#27.0.2
After that uninstall babel-jest by
npm uninstall babel-jest
(When you see the single version of babel-jest,otherwise go as versions as follows)
npm uninstall babel-jest#27.0.2
Then install required dependencies using
npm i babel-jest#version jest#version
(Where version is the one come in 1st point)
This works for me like a charm. Hope this solves you too.
Got this error in the netlify ci, here's the fix that worked for me:
this method works for any lib i got a error for eslint instead of babel-jest.
force the error to be shown by npm i -s #babel-jest/VERSION --force
replace VERSION with whatever version shows in the error(23.6.0 in this case),
the correct error message will be shown locally
use https://www.npmjs.com/package/npm-check-updates to upgrade your package.json flie with the correct versions
run ncu -u in dir of package.json after installing the npm package
globally
finally do a npm ci
this will delete the package-lock and node_modules and install the new versions based on the second step
this work for me.
clear caches in npm or yarn
remove node_modules and lock files
create .env file
add " SKIP_PREFLIGHT_CHECK=true " to an .env file in your project.
my issue was that I have both frontend and backend that I am running concurrently. I installed jest to my root project (for backend) and I guess there is collision with pre-installed react jest. I just uninstalled jest from backend and voila I am happy now. I don't have anything related with babel.
i had the similar problem and wasted my 2-3 days
The easiest way to solve this problem is :
1.go outside of src, and create .env file.
2.Inside .env file, just write this single line and save it:
SKIP_PREFLIGHT_CHECK=true
3.then npm start
Hope this helps, Happy coding!!!
I'm new to Ionic. I was following the Ionic documentation "get started", created a project sample named "super". The problem is that when I run the command line ionic serve in the project directory, it threw an error Error: Cannot find module '#ionic/app-scripts'
Try installing app-script from npm
npm i #ionic/app-scripts
To get the latest #ionic/app-scripts, run the following command:
npm install #ionic/app-scripts#latest --save-dev
app-scripts currently compatible with node 6 and 7.
İf you installed node 8, then please uninstall and install node 6 stable version.
This solved error and now i can use ionic 3, angular 4 .
Take care!
do not downgrade the node version, update the version of "app-scripts":
To get the latest #ionic/app-scripts, please run:
npm install #ionic/app-scripts#latest --save-dev
I was facing same issue, here is what I did-
Removed node_modules from directory (Manually).
open project dir
run this command-
npm install
That fixed those errors for me.
See here.
I had this issue , i solved it by deleting node_modules/ folder and ran the command npm installnow my app works
I tried every non-downgrade solution mentioned in this thread, in all kinds of ways and none of them worked. With nothing left to lose, I went down the downgrade route (I used sudo apt-get purge --auto-remove nodejs to remove previous 8.x version and then installed the last stable ver on the 6.x branch using the nodesource ppa).
Still got the same errors trying to run in the original project folders, but then I created a new project and ionic serve worked just fine in that space.
FWIW, I did not need to run npm update or npm i #ionic/app-scripts afterwards, but I did find it necessary to adopt the habit of running commands with sudo in front (or you sudo -s into root account).
I ran into the same issue and i had problems fixing it. However i update my app scripts npm install -g #ionic/app-scripts#latest --save-dev to the latest version and my problem was solved
npm install -g #ionic/app-scripts#latest --save-dev
Error: app-script not found/ app-script not installed/ app-script module is not found
Try this work for me, Your also:
- npm cache clean --force
- npm install #ionic/app-scripts#latest --save-dev
- npm install -g #angular/cli
I had the issue, solved by execute cnpm i #ionic/app-scripts.
Just open a new terminal window/session. I could not figure it out, but it's probably related to env.
None of the options worked for me.
But I could make it work by updating node with
npm update
After this, the problem was solved and the application started.
Good Luck.
I had the same problem and here is what worked for me
I was trying to run the program using VSCode terminal, Instead I used the windows cmd and it ran perfectly. I think the error is in VSCode terminal, it cannot identify the app-scripts module inside the project. Maybe it will be fixed in a later update.
Delete node_modules and package-lock.json
rm -rf node_modules package-lock.json
npm install
Reference:
https://github.com/ionic-team/ionic-cli/issues/3399
After half a day trying to solve this
And after:
python version error
node-sass misconfiguration error
I did the following
Remove node-modules folder
Run "npm audit fix --force"
Downgrade webpack installation "npm uninstall webpack && install webpack#3.12.0"
The last one because ionic build was giving me an error on that package after the audit
In my case, I need to set NODE_ENV to production then it installs successfully
set NODE_ENV=production
npm install #ionic/app-scripts#latest --save-dev
You must create the project as administrator if you have mac or linux uses sudo, if you have windows run the console as administrator and create the project
My issue was solved after run this script:
npm i #ionic/app-scripts