Error: Node Sass version 7.0.1 is incompatible with ^4.0.0.

14:12:24.598 Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
14:12:24.604 ModuleBuildError: Module build failed (from ./node_modules/@dcloudio/vue-cli-plugin-uni/packages/sass-loader/dist/cjs.js):
14:12:24.607 Error: Node Sass version 7.0.1 is incompatible with ^4.0.0.
14:12:24.610 at getSassImplementation (D:\BaiduNetdiskDownload\dnpicture\node_modules@dcloudio\vue-cli-plugin-uni\packages\sass-loader\dist\getSassImplementation.js:46:13)
14:12:24.613 at Object.loader (D:\BaiduNetdiskDownload\dnpicture\node_modules@dcloudio\vue-cli-plugin-uni\packages\sass-loader\dist\index.js:40:61)
14:12:24.615 at D:\BaiduNetdiskDownload\dnpicture\node_modules\webpack\lib\NormalModule.js:301:20
14:12:24.618 at D:\BaiduNetdiskDownload\dnpicture\node_modules\loader-runner\lib\LoaderRunner.js:367:11
14:12:24.618 at D:\BaiduNetdiskDownload\dnpicture\node_modules\loader-runner\lib\LoaderRunner.js:233:18
14:12:24.621 at runSyncOrAsync (D:\BaiduNetdiskDownload\dnpicture\node_modules\loader-runner\lib\LoaderRunner.js:143:3)
14:12:24.623 at iterateNormalLoaders (D:\BaiduNetdiskDownload\dnpicture\node_modules\loader-runner\lib\LoaderRunner.js:232:2)
14:12:24.626 at iterateNormalLoaders (D:\BaiduNetdiskDownload\dnpicture\node_modules\loader-runner\lib\LoaderRunner.js:221:10)
14:12:24.628 at D:\BaiduNetdiskDownload\dnpicture\node_modules\loader-runner\lib\LoaderRunner.js:236:3
14:12:24.630 at Object. (D:\BaiduNetdiskDownload\dnpicture\node_modules\loader-runner\lib\LoaderRunner.js:111:13)
14:12:24.633 at Object. (D:\BaiduNetdiskDownload\dnpicture\node_modules@dcloudio\vue-cli-plugin-uni\packages\webpack-preprocess-loader\index.js:60:8)
14:12:24.636 ERROR Build failed with errors.

解决方案：

1、npm uninstall node-sass;
2、npm i -D sass;
3、npm run dev；