i have this issue in yellow color when i compiling a react project, but the followin thing thisturbs me a lot

WARNING in ./node_modules/React/cjs/react.development.js There are multiple modules with names that only differ in casing. This can lead to unexpected behavior when compiling on a filesystem with other case-semantic. Use equal casing. Compare these module identifiers: * C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\React\cjs\react.development.js Used by 1 module(s), i. e. C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\React\index.js * C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\react\cjs\react.development.js Used by 1 module(s), i. e. C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\react\index.js @ ./node_modules/React/cjs/react.development.js @ ./node_modules/React/index.js @ ./src/widgets/components/modal.js @ ./src/pages/containers/home.js @ ./src/entries_points/home.js @ multi (webpack)-dev-server/client?http://localhost:9000 ./src/entries_points/home.js

WARNING in ./node_modules/React/cjs/react.production.min.js There are multiple modules with names that only differ in casing. This can lead to unexpected behavior when compiling on a filesystem with other case-semantic. Use equal casing. Compare these module identifiers: * C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\React\cjs\react.production.min.js Used by 1 module(s), i. e. C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\React\index.js * C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\react\cjs\react.production.min.js Used by 1 module(s), i. e. C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\react\index.js @ ./node_modules/React/cjs/react.production.min.js @ ./node_modules/React/index.js @ ./src/widgets/components/modal.js @ ./src/pages/containers/home.js @ ./src/entries_points/home.js @ multi (webpack)-dev-server/client?http://localhost:9000 ./src/entries_points/home.js

WARNING in ./node_modules/React/index.js There are multiple modules with names that only differ in casing. This can lead to unexpected behavior when compiling on a filesystem with other case-semantic. Use equal casing. Compare these module identifiers: * C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\React\index.js Used by 1 module(s), i. e. C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\babel-loader\lib\index.js??ref--0!C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\src\widgets\components\modal.js * C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\react\index.js Used by 15 module(s), i. e. C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\babel-loader\lib\index.js??ref--0!C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\src\entries_points\home.js @ ./node_modules/React/index.js @ ./src/widgets/components/modal.js @ ./src/pages/containers/home.js @ ./src/entries_points/home.js @ multi (webpack)-dev-server/client?http://localhost:9000 ./src/entries_points/home.js

the project in the web browser runs perfectly, but i dont know how to correct this thing, im on windows 10 d: , i read that is a windows problem but i want to fix it. regards

i have this issue in yellow color when i compiling a react project, but the followin thing thisturbs me a lot

WARNING in ./node_modules/React/cjs/react.development.js There are multiple modules with names that only differ in casing. This can lead to unexpected behavior when compiling on a filesystem with other case-semantic. Use equal casing. Compare these module identifiers: * C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\React\cjs\react.development.js Used by 1 module(s), i. e. C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\React\index.js * C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\react\cjs\react.development.js Used by 1 module(s), i. e. C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\react\index.js @ ./node_modules/React/cjs/react.development.js @ ./node_modules/React/index.js @ ./src/widgets/components/modal.js @ ./src/pages/containers/home.js @ ./src/entries_points/home.js @ multi (webpack)-dev-server/client?http://localhost:9000 ./src/entries_points/home.js

WARNING in ./node_modules/React/cjs/react.production.min.js There are multiple modules with names that only differ in casing. This can lead to unexpected behavior when compiling on a filesystem with other case-semantic. Use equal casing. Compare these module identifiers: * C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\React\cjs\react.production.min.js Used by 1 module(s), i. e. C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\React\index.js * C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\react\cjs\react.production.min.js Used by 1 module(s), i. e. C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\react\index.js @ ./node_modules/React/cjs/react.production.min.js @ ./node_modules/React/index.js @ ./src/widgets/components/modal.js @ ./src/pages/containers/home.js @ ./src/entries_points/home.js @ multi (webpack)-dev-server/client?http://localhost:9000 ./src/entries_points/home.js

WARNING in ./node_modules/React/index.js There are multiple modules with names that only differ in casing. This can lead to unexpected behavior when compiling on a filesystem with other case-semantic. Use equal casing. Compare these module identifiers: * C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\React\index.js Used by 1 module(s), i. e. C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\babel-loader\lib\index.js??ref--0!C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\src\widgets\components\modal.js * C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\react\index.js Used by 15 module(s), i. e. C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\node_modules\babel-loader\lib\index.js??ref--0!C:\cygwin64\home\waysolutions-soft\curso\nodejs\react\src\entries_points\home.js @ ./node_modules/React/index.js @ ./src/widgets/components/modal.js @ ./src/pages/containers/home.js @ ./src/entries_points/home.js @ multi (webpack)-dev-server/client?http://localhost:9000 ./src/entries_points/home.js

the project in the web browser runs perfectly, but i dont know how to correct this thing, im on windows 10 d: , i read that is a windows problem but i want to fix it. regards

• javascript
• reactjs

2 Answers 2

You're importing classes with different cases than it's export, please check your import statements.

I got the same error using Nuxt.js. The reason seemed to be the folder components/Global.

I found the components inside this folder added to .nuxt\components\index.js once as Compname and once as GlobalCompname.

The error went away after moving the components into the components folder.

Renaming the folder to components/_global also worked (first attempt).

The answers in https://forum.vuejs.org/t/resolved-there-are-multiple-modules-with-names-that-only-differ-in-casing/26627/6 got me thinking about the path and that maybe Global might be reserved or something.