webpack 打包問題

Project is running at http://localhost:8080/
webpack output is served from /dist/
webpack: wait until bundle finished: /dist/main.css
D:\vue\demo\node_modules\_extract-text-webpack-plugin@3.0.2@extract-text-webpack-plugin\
st\index.js:188
chunk.sortModules();
^

TypeError: chunk.sortModules is not a function
at D:\vue\demo\node_modules\_extract-text-webpack-plugin@3.0.2@extract-text-webpack-
ugin\dist\index.js:188:19
at D:\vue\demo\node_modules\_async@2.6.2@async\dist\async.js:3110:16
at eachOfArrayLike (D:\vue\demo\node_modules\_async@2.6.2@async\dist\async.js:1069:9
at eachOf (D:\vue\demo\node_modules\_async@2.6.2@async\dist\async.js:1117:5)
at Object.eachLimit (D:\vue\demo\node_modules\_async@2.6.2@async\dist\async.js:3172:

at Compilation.<anonymous> (D:\vue\demo\node_modules\_extract-text-webpack-plugin@3.
2@extract-text-webpack-plugin\dist\index.js:184:27)
at Compilation.applyPluginsAsyncSeries (D:\vue\demo\node_modules\_tapable@0.2.9@tapa
e\lib\Tapable.js:206:13)
at Compilation.seal (D:\vue\demo\node_modules\_webpack@2.7.0@webpack\lib\Compilation
s:579:8)
at D:\vue\demo\node_modules\_webpack@2.7.0@webpack\lib\Compiler.js:493:16
at D:\vue\demo\node_modules\_tapable@0.2.9@tapable\lib\Tapable.js:289:11
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! demo@1.0.0 dev: `webpack-dev-server --open --config webpack.config.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the demo@1.0.0 dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging out
t above.

 

實際問題是版本問題

"extract-text-webpack-plugin": "^2.1.2",

 

npm install extract-text-webpack-plugin@2.1.2 --save-dev