I have been searching about Next.js, the javascript framework of the moment, and I want to begin to practice. The problem is: it doesn't run in my computer by any means.
The natural form on creating a next project is with the command line:
npx create-next-app
or
yarn create next-app
The result is a template project with a file structure and a few scripts to run the server. The most basic script runs the server in development mode:
npm run dev
or
yarn dev
The result in terminal is the warning:
$ yarn dev
yarn run v1.22.5
$ next dev
(node:5348) [DEP0148] DeprecationWarning: Use of deprecated folder mapping "./" in the "exports" field module resolution
of the package at C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\node_modules\postcss\package.json.
Update this package.json to use a subpath pattern like "./*".
(Use `node --trace-deprecation ...` to show where the warning was created)
ready - started server on http://localhost:3000
error - C:/Users/maths/Documents/codigos/node/my-app/pages/_app.js 4:9
Module parse failed: Unexpected token (4:9)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. S
ee https://webpack.js.org/concepts#loaders
|
| function MyApp({ Component, pageProps }) {
> return <Component {...pageProps} />
| }
|
And when I enter the website in localhost:3000, the page on browser shows:
Internal Server Error
After making the http requisition from the browser, the terminal shows the following message:
event - build page: /next/dist/pages/_error
wait - compiling...
error - C:/Users/maths/Documents/codigos/node/my-app/pages/_app.js 4:9
Module parse failed: Unexpected token (4:9)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. S
ee https://webpack.js.org/concepts#loaders
|
| function MyApp({ Component, pageProps }) {
> return <Component {...pageProps} />
| }
|
Error: Cannot find module 'C:\Users\maths\Meus Documentos\codigos\node\my-app\.next\server\pages-manifest.json'
Require stack:
- C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\server\require.js
- C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\server\load-components.js
- C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\server\api-utils.js
- C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\server\next-server.js
- C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\server\next.js
- C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\server\lib\start-server.js
- C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\cli\next-dev.js
- C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\bin\next
at Function.Module._resolveFilename (node:internal/modules/cjs/loader:925:15)
at Function.Module._load (node:internal/modules/cjs/loader:769:27)
at Module.require (node:internal/modules/cjs/loader:997:19)
at require (node:internal/modules/cjs/helpers:92:18)
at getPagePath (C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\server\require.js:1:
657)
at requirePage (C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\server\require.js:1:
1062)
at loadComponents (C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\server\load-compo
nents.js:1:807)
at DevServer.findPageComponents (C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\ser
ver\next-server.js:74:296)
at DevServer.renderErrorToHTML (C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\serv
er\next-server.js:126:120)
at DevServer.renderErrorToHTML (C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\server\next-dev-
server.js:34:974)
at processTicksAndRejections (node:internal/process/task_queues:93:5)
at async DevServer.render (C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\server\ne
xt-server.js:72:236)
at async Object.fn (C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\server\next-serv
er.js:56:618)
at async Router.execute (C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\server\rout
er.js:23:67)
at async DevServer.run (C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\server\next-
server.js:66:1042)
at async DevServer.handleRequest (C:\Users\maths\Documents\codigos\node\my-app\node_modules\next\dist\next-server\se
rver\next-server.js:34:1081) {
code: 'MODULE_NOT_FOUND',
requireStack: [
'C:\\Users\\maths\\Documents\\codigos\\node\\my-app\\node_modules\\next\\dist\\next-server\\server\\require.js',
'C:\\Users\\maths\\Documents\\codigos\\node\\my-app\\node_modules\\next\\dist\\next-server\\server\\load-components.
js',
'C:\\Users\\maths\\Documents\\codigos\\node\\my-app\\node_modules\\next\\dist\\next-server\\server\\api-utils.js',
'C:\\Users\\maths\\Documents\\codigos\\node\\my-app\\node_modules\\next\\dist\\next-server\\server\\next-server.js',
'C:\\Users\\maths\\Documents\\codigos\\node\\my-app\\node_modules\\next\\dist\\server\\next.js',
'C:\\Users\\maths\\Documents\\codigos\\node\\my-app\\node_modules\\next\\dist\\server\\lib\\start-server.js',
'C:\\Users\\maths\\Documents\\codigos\\node\\my-app\\node_modules\\next\\dist\\cli\\next-dev.js',
'C:\\Users\\maths\\Documents\\codigos\\node\\my-app\\node_modules\\next\\dist\\bin\\next'
]
}
I have tried several things to fix it, create the next project without the script from npx and yarn (by manually installing the dependencies), update versions of node and npm, etc. It seems that the program can't load the jsx, the first error points to the moment when the first jsx component appear in the code. The message says that webpack isn't configured with a valid loader to this code.
Environment:
- Win 10
- npm v7.3.0
- node v15.5.0
- next v10.0.4
- react v17.0.1
- react-dom v17.0.1