[英]Angular 8 to Angular 9 migration issues
I have migrated from angular 8 to angular 9 then i got the below issues For this i have removed the node_modules many times and installed freshly but still i am getting the below issues:我已经从 angular 8 迁移到了 angular 9 然后我遇到了以下问题为此,我多次删除了 node_modules 并重新安装,但我仍然遇到以下问题:
An unhandled exception occurred: Cannot find module 'webpack/lib/ParserHelpers'
Require stack:
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\worker-plugin\dist\worker-plugin.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular-devkit\build-angular\src\angular-cli-files\models\webpack-configs\worker.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular-devkit\build-angular\src\angular-cli-files\models\webpack-configs\index.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular-devkit\build-angular\src\browser\index.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular-devkit\build-angular\src\dev-server\index.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular\cli\node_modules\@angular-devkit\architect\node\node-modules-architect-host.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular\cli\node_modules\@angular-devkit\architect\node\index.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular\cli\models\architect-command.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular\cli\commands\serve-impl.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular-devkit\schematics\tools\export-ref.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular-devkit\schematics\tools\index.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular\cli\utilities\json-schema.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular\cli\models\command-runner.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular\cli\lib\cli\index.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular\cli\lib\init.js
- E:\ng9\Fxt\Web\src\main\ui\material\node_modules\@angular\cli\bin\ng
See "C:\Users\ADMIN\AppData\Local\Temp\ng-MOOMPS\angular-errors.log" for further details.
npm ERR! code ELIFECYCLE
npm ERR! syscall spawn
npm ERR! file C:\WINDOWS\system32\cmd.exe
npm ERR! errno ENOENT
npm ERR! material@3.0.0 start: `ng serve --proxy-config proxy.config.json`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the material@3.0.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\ADMIN\AppData\Roaming\npm-cache\_logs\2020-11-17T16_17_33_897Z-debug.log
uninstall webpack and then again install it globally.卸载 webpack,然后再次全局安装它。
npm uninstall -g webpack
npm卸载 -g webpack
npm install webpack -g
npm install webpack -g
uninstall cli and then again install it globally.卸载 cli,然后再次全局安装它。
npm uninstall -g @angular/cli
npm uninstall -g @angular/cli
npm install -g @angular/cli
npm install -g @angular/cli
And now try to install node modules again.现在再次尝试安装节点模块。
rm node_modules -r -force
rm node_modules -r -force
rm package-lock.json
rm 包-lock.json
npm cache verify
npm 缓存验证
npm install
安装
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