Using react leaflet version3 gave this kind of errors - reactjs

Module parse failed: Unexpected token (3:0)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
| / required styles /
|
.leaflet-pane,
| .leaflet-tile,
| .leaflet-marker-icon,
i have tried many solution but nothing changes i am stuck here for 3 hours

Take a look here: https://blog.logrocket.com/react-leaflet-tutorial/
Replace the "browserslist" values in the package.json

Related

Next JS You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file

i have this bug with Next JS
./node_modules/react-player/es6/ReactPlayer.jsx
Module parse failed: Unexpected token (140:8)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
| const { light, playIcon, previewTabIndex, oEmbedUrl } = this.props
| return (
> <Preview
| url={url}
| light={light}
Thank You

React Js : Module parse failed: Unexpected token

I keep getting below error in my react app. Not sure what is the issue.
/Users/823222/miniapp/node_modules/headers-polyfill/lib/Headers.js 9:25
Module parse failed: Unexpected token (9:25)
File was processed with these loaders:
../../node_modules/source-map-loader/index.js
You may need an additional loader to handle the result of these loaders.
| class HeadersPolyfill {
| // Normalized header {"name":"a, b"} storage.
[NORMALIZED_HEADERS] = {};
| // Keeps the mapping between the raw header name
| // and the normalized header name to ease the lookup.
Looks like this is due to a recent change in this package, that changed how the symbols were declared:
https://github.com/mswjs/headers-polyfill/pull/33/files
I've started a GitHub issue here, feel free to add details about your environment:
https://github.com/mswjs/headers-polyfill/issues/36
TL;DR: There was a significant change to how the module is prepared in a recent release, I reverted to 3.0.4 and things are working again for me.
Edit:
3.0.10 released that reverts the build target and fixes this issue:
https://github.com/mswjs/headers-polyfill/releases/tag/v3.0.10

Getting Module parse failed: Unexpected token (3042:46) this error in reactJS

Guyz getting this error i have added pdf.js file also and i'm upgrading node version that time i have got this error if anyone know please let me know
Failed to compile.
./node_modules/pdfjs-dist/build/pdf.js 3042:46
Module parse failed: Unexpected token (3042:46)
File was processed with these loaders:
./node_modules/babel-loader/lib/index.js
You may need an additional loader to handle the result of these loaders.
| key: "getJSActions",
| value: function getJSActions() {
return this._jsActionsPromise ||= this._transport.getPageJSActions(this._pageIndex);
| }
| }, {
It's a compile error. Node said "you need an additional loader to handle this issue" which means while you update you node, something happens in one of your loader file. You should re-install "the issue loader" and then run it again. Are you building your app with CRA template? if so, you should re-install CRA template again and then move all files into the new project folder and run it.
I hope you find a solution! :D

can't import Antd stylesheet file and Webpack gives error

When I import
import 'antd/dist/antd.css';
these lines I got error like below.
ERROR in ./node_modules/antd/dist/antd.css 13:6
Module parse failed: Unexpected token (13:6)
You may need an appropriate loader to handle this file type, currently no loaders are
configured to process this file. See https://webpack.js.org/concepts#loaders.
| /* stylelint-disable */
| /* stylelint-disable declaration-bang-space-before,no-duplicate-selectors,string-no-newline
*/
> [class^=ant-]::-ms-clear,
| [class*= ant-]::-ms-clear,
| [class^=ant-] input::-ms-clear,
# ./src/index.tsx 4:0-28
Anyone please help me how to avoid this. I am using Antd for React, Typescript project with Webpack and Babel.
import this one instead with min.css extensionantd/dist/antd.min.css

How can I fix my test suites failure to run because of the tcomb-form-native library for React Native?

I am trying to perform unit testing and integration testing for a React Native application. When running yarn test --coverage several of my test suites fail to run because of the tcomb-form-native library.
I receive this specific error:
({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){import t from "./lib";
SyntaxError: Unexpected identifier
13 | // import { gray } from 'ansi-colors';
14 |
> 15 | import t from 'tcomb-form-native';
| ^
16 |
17 | const Form = t.form.Form;
18 |
at ScriptTransformer._transformAndBuildScript (node_modules/jest-runtime/build/script_transformer.js:403:17)
at Object.<anonymous> (screens/ReservationScreen.js:15:1)
I updated the package.json file following the Tests section from the library's GitHub, https://github.com/gcanti/tcomb-form-native, but continue to get the same error.
I'm confused by this line from the tcomb-form-native ReadMe Tests description:
"ios.js" <<<<<<<<<<<< this needs to be defined!
I created the React Native app using Expo so I don't have an ios.js file. The only difference under the "jest": from the example code in the GitHub is that I also have "preset": "jest-expo", defined.
What changes do I need to make to my package.json file or my test suites in order for my test suites to run? (They don't have to pass, just simply run.)
Edit:
I tried adding the following code to package.json based on the top answer from https://github.com/gcanti/tcomb-form-native/issues/443:
"transformIgnorePatterns": [
"node_modules/(?!react-native|tcomb-form-native)"
]`
I added the code without the original suggested edits from the library's GitHub ReadMe and added it IN ADDITION to the suggested edits. I am still receiving SyntaxError: Unexpected identifier when I run tests.
Edit #2:
I changed changed import t from 'tcomb-form-native'; to var t = require('tcomb-form-native'); and I'm still receiving SyntaxError: Unexpected identifier.

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