How to solve this npm run build error ?

[Prasanthmv]

Showing the follwoing error when running npm run build . Please help

ERROR in .//css-loader!.//postcss-loader!./css/main.css
Module build failed: ReferenceError: Promise is not defined
at Object. (F:\My - Worked Projects\My Updated\react-boilerp
late-master\node_modules\postcss-import\index.js:13:27)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.postcss (F:\My - Worked Projects\My Updated\react-boilerplate
-master\makewebpackconfig.js:94:9)
at Object.module.exports (F:\My - Worked Projects\My Updated\react-boil
erplate-master\node_modules\postcss-loader\index.js:28:27)
@ ./css/main.css 4:14-117

ERROR in ./css/main.css
Module build failed: ModuleBuildError: Module build failed: ReferenceError:
Promise is not defined
at Object. (F:\My - Worked Projects\My Updated\react-boilerp
late-master\node_modules\postcss-import\index.js:13:27)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.postcss (F:\My - Worked Projects\My Updated\react-boilerplate
-master\makewebpackconfig.js:94:9)
at Object.module.exports (F:\My - Worked Projects\My Updated\react-boil
erplate-master\node_modules\postcss-loader\index.js:28:27)
at DependenciesBlock.onModuleBuildFailed (F:\My - Worked Projects\My Up
dated\react-boilerplate-master\node_modules\webpack\node_modules\webpack-co
re\lib\NormalModuleMixin.js:315:19)
at nextLoader (F:\My - Worked Projects\My Updated\react-boilerplate-mas
ter\node_modules\webpack\node_modules\webpack-core\lib\NormalModuleMixin.js
:270:31)
at F:\My - Worked Projects\My Updated\react-boilerplate-master\node_mod
ules\webpack\node_modules\webpack-core\lib\NormalModuleMixin.js:292:15
at runSyncOrAsync (F:\My - Worked Projects\My Updated\react-boilerplate
-master\node_modules\webpack\node_modules\webpack-core\lib\NormalModuleMixi
n.js:173:4)
at nextLoader (F:\My - Worked Projects\My Updated\react-boilerplate-mas
ter\node_modules\webpack\node_modules\webpack-core\lib\NormalModuleMixin.js
:290:3)
at F:\My - Worked Projects\My Updated\react-boilerplate-master\node_mod
ules\webpack\node_modules\webpack-core\lib\NormalModuleMixin.js:259:5
at Storage.provide (F:\My - Worked Projects\My Updated\react-boilerplat
e-master\node_modules\webpack\node_modules\enhanced-resolve\lib\CachedInput
FileSystem.js:52:20)
at CachedInputFileSystem.readFile (F:\My - Worked Projects\My Updated\r
eact-boilerplate-master\node_modules\webpack\node_modules\enhanced-resolve
lib\CachedInputFileSystem.js:140:24)
at DependenciesBlock.onLoadPitchDone (F:\My - Worked Projects\My Update
d\react-boilerplate-master\node_modules\webpack\node_modules\webpack-core\l
ib\NormalModuleMixin.js:255:7)
at DependenciesBlock.loadPitch (F:\My - Worked Projects\My Updated\reac
t-boilerplate-master\node_modules\webpack\node_modules\webpack-core\lib\Nor
malModuleMixin.js:182:27)
at DependenciesBlock.loadPitch (F:\My - Worked Projects\My Updated\reac
t-boilerplate-master\node_modules\webpack\node_modules\webpack-core\lib\Nor
malModuleMixin.js:186:21)
at DependenciesBlock.loadPitch (F:\My - Worked Projects\My Updated\reac
t-boilerplate-master\node_modules\webpack\node_modules\webpack-core\lib\Nor
malModuleMixin.js:223:61)
at DependenciesBlock.loadPitch (F:\My - Worked Projects\My Updated\reac
t-boilerplate-master\node_modules\webpack\node_modules\webpack-core\lib\Nor
malModuleMixin.js:186:21)
at DependenciesBlock.loadPitch (F:\My - Worked Projects\My Updated\reac
t-boilerplate-master\node_modules\webpack\node_modules\webpack-core\lib\Nor
malModuleMixin.js:223:61)
at DependenciesBlock.doBuild (F:\My - Worked Projects\My Updated\react-
boilerplate-master\node_modules\webpack\node_modules\webpack-core\lib\Norma
lModuleMixin.js:241:4)
at DependenciesBlock.build (F:\My - Worked Projects\My Updated\react-bo
ilerplate-master\node_modules\webpack\lib\NormalModule.js:84:14)
at Compilation.buildModule (F:\My - Worked Projects\My Updated\react-bo
ilerplate-master\node_modules\webpack\lib\Compilation.js:126:9)
at Compilation. (F:\My - Worked Projects\My Updated\react-bo
ilerplate-master\node_modules\webpack\lib\Compilation.js:398:8)
at F:\My - Worked Projects\My Updated\react-boilerplate-master\node_mod
ules\webpack\lib\NormalModuleFactory.js:58:13
at NormalModuleFactory.applyPluginsAsyncWaterfall (F:\My - Worked Proje
cts\My Updated\react-boilerplate-master\node_modules\webpack\node_modules\t
apable\lib\Tapable.js:75:69)
at onDoneResolving (F:\My - Worked Projects\My Updated\react-boilerplat
e-master\node_modules\webpack\lib\NormalModuleFactory.js:38:11)
at onDoneResolving (F:\My - Worked Projects\My Updated\react-boilerplat
e-master\node_modules\webpack\lib\NormalModuleFactory.js:121:6)
at F:\My - Worked Projects\My Updated\react-boilerplate-master\node_mod
ules\webpack\lib\NormalModuleFactory.js:98:13
at F:\My - Worked Projects\My Updated\react-boilerplate-master\node_mod
ules\webpack\node_modules\async\lib\async.js:721:13
at F:\My - Worked Projects\My Updated\react-boilerplate-master\node_mod
ules\webpack\node_modules\async\lib\async.js:52:16
at async.forEachOf.async.eachOf (F:\My - Worked Projects\My Updated\rea
ct-boilerplate-master\node_modules\webpack\node_modules\async\lib\async.js:
236:30)
at _parallel (F:\My - Worked Projects\My Updated\react-boilerplate-mast
er\node_modules\webpack\node_modules\async\lib\async.js:712:9)
at Object.async.parallel (F:\My - Worked Projects\My Updated\react-boil
erplate-master\node_modules\webpack\node_modules\async\lib\async.js:726:9)
at F:\My - Worked Projects\My Updated\react-boilerplate-master\node_mod
ules\webpack\lib\NormalModuleFactory.js:75:10
at F:\My - Worked Projects\My Updated\react-boilerplate-master\node_mod
ules\webpack\lib\NormalModuleFactory.js:28:4
Child extract-text-webpack-plugin:
+ 1 hidden modules

ERROR in ./~/css-loader!./~/postcss-loader!./css/main.css
Module build failed: ReferenceError: Promise is not defined
    at Object.<anonymous> (F:\My - Worked Projects\My Updated\react-boi

lerplate-master\node_modules\postcss-import\index.js:13:27)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.postcss (F:\My - Worked Projects\My Updated\react-boilerp
late-master\makewebpackconfig.js:94:9)
at Object.module.exports (F:\My - Worked Projects\My Updated\react-
boilerplate-master\node_modules\postcss-loader\index.js:28:27)

[mxstbr]

I think this is a problem with your node version, see this issue in the css-loader repo: webpack-contrib/css-loader#144

[Prasanthmv]

Thanks u

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.