When i ran npm start command to start server for my react app created using npx create-react-app my-app, The following error is occuring.Please help me with the solution to clear the following bug.I have also tried all the steps mentioned below by it but the error was not cleared.
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-eslint": "10.1.0"
Don't try to install it manually: your package manager does it automatically.
However, a different version of babel-eslint was detected higher up in the tree:
C:\Users\LENOVO\node_modules\babel-eslint (version: 9.0.0)
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 "babel-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 C:\Users\LENOVO\node_modules\babel-eslint is outside your project directory.
For example, you might have accidentally installed something in your home folder.
7. Try running npm ls babel-eslint in your project folder.
This will tell you which other package (apart from the expected react-scripts) installed babel-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.
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! reactapp#0.1.0 start: `react-scripts start`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the reactapp#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! C:\Users\LENOVO\AppData\Roaming\npm-cache\_logs\2020-07-19T12_53_40_050Z-debug.log
create your application outside the Desktop folder.
This is because of the package versions installed in user directory. The line from the error mentions the overriding version in the global user directory.
C:\Users\LENOVO\node_modules\babel-eslint (version: 9.0.0)
Try updating the version in the node_modules folder in the user directory or remove these and maintain local node_modules based on each project requirements.
I found a possible solution, or at least this one worked well for me. npm install #babel/eslint-parser and then npm start . If this doesnt work, first try this:
Delete babel-eslint in your node-modules or
Search where you could find that one with npm ls babel-eslint,
I hope works for you. :)
Related
I am starting react JS and I created a new project but I have a problem running it.
I tried with a different version of node. Now, I am using v14.17.6
This is the message I get :
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-eslint": "^10.1.0"
Don't try to install it manually: your package manager does it
automatically. However, a different version of babel-eslint was
detected higher up in the tree:
C:\node_modules\babel-eslint (version: 10.0.3)
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:
Delete package-lock.json (not package.json!) and/or yarn.lock in your project folder.
Delete node_modules in your project folder.
Remove "babel-eslint" from dependencies and/or devDependencies in the package.json file in your project folder.
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:
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.
Check if C:\node_modules\babel-eslint is outside your project directory.
For example, you might have accidentally installed something in your home folder.
Try running npm ls babel-eslint in your project folder.
This will tell you which other package (apart from the expected react-scripts) installed babel-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.
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! mfsitexxx#0.1.0
start: react-scripts start npm ERR! Exit status 1 npm ERR! npm ERR!
Failed at the mfsitexxx#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!
C:\Users\waref\AppData\Roaming\npm-cache_logs\2021-09-22T15_03_49_372Z-debug.log
PS C:\Users\waref\Documents\GitHub\mfsitexxx>
it seems from the error message that you are missing dependencies. Try running the following commands
npm install eslint#6.x babel-eslint#10 --save-dev
I have setup eslint+prettier+husky in my react opensource project. When I ran npm start after setting up it is showing me 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": "^6.6.0"
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:
/Users/rishipurwar/coding-space/node_modules/eslint (version: 7.32.0)
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 /Users/rishipurwar/coding-space/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.
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! codingspace#0.1.0 start: `npm run watch:css && react-scripts start`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the codingspace#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:
Anyone please help me with this.
As stated in the error just try one of these
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.
I have a react project and I want to bundle it using webpack. I have set up the entry, output, path, and filename etc,. But, doing so, when I am running the project I get the following errors. How can I solve this.
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:
"webpack": "4.42.0"
Don't try to install it manually: your package manager does it
automatically. However, a different version of webpack was detected
higher up in the tree:
C:\Users\gowtham\Desktop\task\node_modules\webpack (version: 4.42.1)
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:
Delete package-lock.json (not package.json!) and/or yarn.lock in your project folder.
Delete node_modules in your project folder.
Remove "webpack" from dependencies and/or devDependencies in the package.json file in your project folder.
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:
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.
Check if C:\Users\gowtham\Desktop\task\node_modules\webpack is outside your project directory.
For example, you might have accidentally installed something in your home folder.
Try running npm ls webpack in your project folder.
This will tell you which other package (apart from the expected react-scripts) installed webpack.
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! task#0.1.0 start:
react-scripts start npm ERR! Exit status 1 npm ERR! Failed at the
task#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!
C:\Users\gowtham\AppData\Roaming\npm-cache_logs\2020-04-09T11_57_57_611Z-debug.log
PS C:\Users\gowtham\Desktop\task> npm start
task#0.1.0 start C:\Users\gowtham\Desktop\task
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:
"webpack": "4.42.0"
Don't try to install it manually: your package manager does it
automatically. However, a different version of webpack was detected
higher up in the tree:
C:\Users\gowtham\Desktop\task\node_modules\webpack (version: 4.42.1)
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:
Delete package-lock.json (not package.json!) and/or yarn.lock in your project folder.
Delete node_modules in your project folder.
Remove "webpack" from dependencies and/or devDependencies in the package.json file in your project folder.
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:
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.
Check if C:\Users\gowtham\Desktop\task\node_modules\webpack is outside your project directory.
For example, you might have accidentally installed something in your home folder.
Try running npm ls webpack in your project folder.
This will tell you which other package (apart from the expected react-scripts) installed webpack.
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! task#0.1.0 start:
react-scripts start npm ERR! Exit status 1 npm ERR! npm ERR! Failed
at the task#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!
C:\Users\gowtham\AppData\Roaming\npm-cache_logs\2020-04-09T11_59_28_082Z-debug.log
How can I fix this issue?
I used create-react app to create a new react application, when I try to start it using the command npm start, it returns the following error:
> warbler-client#0.1.0 start
/mnt/c/Users/Debchakra/Desktop/warbler/warbler-client
> 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:
"webpack": "4.28.3"
Don't try to install it manually: your package manager does it
automatically.
However, a different version of webpack was detected higher up in the
tree:
/mnt/c/Users/Debchakra/node_modules/webpack (version: 4.29.5)
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 "webpack" 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 /mnt/c/Users/Debchakra/node_modules/webpack is outside your
project directory.
For example, you might have accidentally installed something in your
home folder.
7. Try running npm ls webpack in your project folder.
This will tell you which other package (apart from the expected
react-scripts) installed webpack.
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! warbler-client#0.1.0 start: `react-scripts start`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the warbler-client#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! /home/webdeb/.npm/_logs/2019-03-26T06_44_19_294Z-debug.log
I tried all the steps mentioned above, like install yarn and all that, but it always shows the same error.
Previously, I have used create-react-app inside if cloud9, it worked fine then, but now I am doing it on my local system. And I actually using WSL. (if that helps)
You already have a version of webpack installed globally on your system ( /mnt/c/Users/Debchakra/node_modules/webpack (version: 4.29.5)
) which does not match the version required by create-react-app.
Uninstalling the global version via npm uninstall -g webpack should fix it.
I'm using create-react-app. When I run npm start, I get the error below.
I've tried all the steps given by the terminal (see below). It just doesn't work. I have also tried to uninstall and install webpack, but no luck so far. How can I fix this?
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:
"webpack": "4.19.1"
Don't try to install it manually: your package manager does it automatically. However, a different version of webpack was detected
higher up in the tree:
/Users/seertech/node_modules/webpack (version: 4.23.1)
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 "webpack" 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/seertech/node_modules/webpack is outside your project directory.
For example, you might have accidentally installed something in your home folder.
7. Try running npm ls webpack in your project folder.
This will tell you which other package (apart from the expected react-scripts) installed webpack.
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-client#0.1.0 start: react-scripts start npm ERR! Exit
status 1 npm ERR! npm ERR! Failed at the react-client#0.1.0 start
script. npm ERR! This is probably not a problem with npm. There is
likely additional logging output above.
This is because an NPM package was installed in a folder above this one, likely in error. To remedy, start at the project folder and cd ../ into the above folder, do ls. If you see a node_modules folder that shouldn't be there, delete it. If not, cd ../ again and ls again. Repeat until you find the offending node_modules and delete it.