I am trying to install react using this command: npx create-react-app.
Then I tried to run using this command: npm run start
Then I get this error:
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-dev-server": "3.10.3"
Don't try to install it manually: your package manager does it automatically.
However, a different version of webpack-dev-server was detected higher up in the tree:
C:\Users\oa\Desktop\node_modules\webpack-dev-server (version: 3.11.0)
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.
As suggested here [https://stackoverflow.com/questions/42308879/npm-err-code-elifecycle][1], I have tried to fix it using the following commands:
delete package-lock.json
npm cache clean --force
npm install
npm start
But did not fixed for me.
Just to let you know, my npm version is 6.13.6
, and node version is v13.8.0
Try to create a .env
file in the root directory of the project and add this line SKIP_PREFLIGHT_CHECK=true
inside the file.
then try to run yarn start
or npm start
.
Did you give a project name after npx create-react-app 'appName'
?
If you have multiple node_modules folders with different versions of dependencies one may conflict with the other - do the following:
i. Delete package-lock.json (not package.json.) and/or yarn.lock in your project folder.
ii. Delete node_modules in your project folder.
iii. Remove "webpack" from dependencies and/or devDependencies in the package.json file in your project folder.
iv. Run npm install
or yarn, depending on the package manager you use.
Find the location of the node_modules folder that is not in your project folder ~ this line - (C:\Users\oa\Desktop\node_modules\webpack-dev-server)
Go there and delete it
once done try npm start
should work:)!
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