将 Angular 更新到版本 13 后，如何修复 Directory import '@angular-devkit\build-angular\src\dev-server' 不支持解析 ES 模块

Question

更新我的角度版本后运行时ng serve出现以下错误：

An unhandled exception occurred: Directory import 'C:\Users\xxx\Documents\desktop-server-client-app\desktop\server\client\node_modules\@angular-devkit\build-angular\src\dev-server' is not supported 
resolving ES modules imported from C:\Users\xxx\Documents\desktop-server-client-app\desktop\server\client\node_modules\@angular\cli\node_modules\@angular-devkit\architect\node\node-modules-architect-host.js
Did you mean to import C:/Users/xxx/Documents/desktop-server-client-app/desktop/server/client/node_modules/@angular-devkit/build-angular/src/dev-server/index.js?
See "C:\Users\xxx\AppData\Local\Temp\ng-TMJqg5\angular-errors.log" for further details.

日志输出：

[error] Error [ERR_UNSUPPORTED_DIR_IMPORT]: Directory import 'C:\Users\xxx\Documents\desktop-server-client-app\desktop\server\client\node_modules\@angular-devkit\build-angular\src\dev-server' is not supported resolving ES modules imported from C:\Users\xxx\Documents\desktop-server-client-app\desktop\server\client\node_modules\@angular\cli\node_modules\@angular-devkit\architect\node\node-modules-architect-host.js
    Did you mean to import C:/Users/xxx/Documents/desktop-server-client-app/desktop/server/client/node_modules/@angular-devkit/build-angular/src/dev-server/index.js?
        at finalizeResolution (internal/modules/esm/resolve.js:272:17)
        at moduleResolve (internal/modules/esm/resolve.js:699:10)
        at Loader.defaultResolve [as _resolve] (internal/modules/esm/resolve.js:810:11)
        at Loader.resolve (internal/modules/esm/loader.js:85:40)
        at Loader.getModuleJob (internal/modules/esm/loader.js:229:28)
        at Loader.import (internal/modules/esm/loader.js:164:28)
        at importModuleDynamically (internal/modules/cjs/loader.js:1006:27)
        at exports.importModuleDynamicallyCallback (internal/process/esm_loader.js:30:14)
        at eval (eval at loadEsmModule (C:\Users\xxx\Documents\desktop-server-client-app\desktop\server\client\node_modules\@angular\cli\node_modules\@angular-devkit\architect\node\node-modules-architect-host.js:195:12), <anonymous>:3:1)
        at loadEsmModule (C:\Users\xxx\Documents\desktop-server-client-app\desktop\server\client\node_modules\@angular\cli\node_modules\@angular-devkit\architect\node\node-modules-architect-host.js:195:68)

有人可以向我解释这个错误的含义以及如何修复它吗？在我看来，这是某种兼容性问题，我对此无能为力。到目前为止，我的角度项目只包含一些样板代码，所以这不应该是问题。

编辑：我的版本如下：

Node: 14.15.0
npm: 6.14.8
Angular: 13.2.4

@angular-devkit/architect: 0.1202.16
@angular-devkit/build-angular: 12.2.16
@angular-devkit/core: 12.2.16
@angular-devkit/schematics: 13.2.5
@angular/cdk: 12.2.13
@angular/cli: 13.2.5
@angular/material: 12.2.13
@schematics/angular: 13.2.5
rxjs: 6.6.7
typescript: 4.5.5

Answer 1

我遇到这个问题是因为我使用 flag 将我的项目更新到 Angular 13 --legacy-peer-deps。因此，旧的依赖项仍然存在于package.json.

确保您拥有与引发的错误相关的适当的软件包版本。根据您的具体情况，尝试改变

"@angular-devkit/build-angular": "~12.2.16" 到"@angular-devkit/build-angular": "~13.2.5"

然后运行npm install。