在angular项目中卸载npm包@ angular / materials后出现此错误

问题描述

./ node_modules/@angular/material/prebuilt-themes/purple-green.css(./node_modules/css-loader/dist/cjs.js??ref--12-1!./node_modules/postcss- loader / src ??嵌入!./node_modules/@angular/material/prebuilt-themes/purple-green.css) 模块构建失败(来自./node_modules/postcss-loader/src/index.js): 错误:ENOENT:没有此类文件或目录,请打开“ C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules @ angular \ material \ prebuilt-themes \ purple-green.css” 在Object.openSync(fs.js:436:3) 在Object.readFileSync(fs.js:341:35) 在Storage.provideSync(C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules \ enhanced-resolve \ lib \ CachedInputFileFile.js:109:13) 在CachedInputFileSystem.readFileSync(C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules \ enhanced-resolve \ lib \ CachedInputFileSystem.js:289:32) 在Observable.rxjs_1.Observable.obs [作为_subscribe](C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules @ ngtools \ webpack \ src \ webpack-input-host.js:35:51) 在Observable._trySubscribe(C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules @ ngtools \ webpack \ node_modules \ rxjs \ internal \ Observable.js:44:25) 在Observable.subscribe(C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules @ ngtools \ webpack \ node_modules \ rxjs \ internal \ Observable.js:30:22) 在SyncDelegateHost._doSyncCall(C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules @ angular-devkit \ core \ src \ virtual-fs \ host \ sync.js:22:20) 在SyncDelegateHost.read(C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules @ angular-devkit \ core \ src \ virtual-fs \ host \ sync.js:49:21) 在WebpackCompilerHost.readfilebuffer(C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules @ ngtools \ webpack \ src \ compiler_host.js:165:44) 在VirtualFileSystemDecorator.readFile(C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules @ ngtools \ webpack \ src \ virtual_file_system_decorator.js:42:54) 在processResource(C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules \ loader-runner \ lib \ LoaderRunner.js:202:11) 在iteratepitchingLoaders(C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules \ loader-runner \ lib \ LoaderRunner.js:158:10) 在iteratepitchingLoaders(C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules \ loader-runner \ lib \ LoaderRunner.js:165:10) 在C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules \ loader-runner \ lib \ LoaderRunner.js:176:18 在loadLoader(C:\ Users \ Legion \ Documents \ 2020_2021_school \ uploy \ frontend \ node_modules \ loader-runner \ lib \ loadLoader.js:47:3)

解决方法

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