Yarn berry PnP - ng serve fails for new project

[Person-93]

🐞 Bug report

Command (mark with an x)

• new
• build
• serve
• test
• e2e
• generate
• add
• update
• lint
• extract-i18n
• run
• config
• help
• version
• doc

Is this a regression?

No

Description

The angular CLI produces projects that don't work with yarn PnP even after following the steps described at #16980.

🔬 Minimal Reproduction

• ng new test-project --skip-git --skip-install --defaults
• cd test-project
• yarn set version berry
• yarn add -D @yarnpkg/pnpify
• yarn unplug -R @angular/*
• yarn unplug -R @angular-devkit/*
• yarn pnpify ng serve

🔥 Exception or Error

An unhandled exception occurred: Cannot find package '@angular/compiler-cli' imported from /[redacted]/test-project/.yarn/unplugged/@angular-devkit-build-angular-virtual-032fd50c3d/node_modules/@angular-devkit/build-angular/src/utils/load-esm.js
Did you mean to import @angular-compiler-cli-virtual-76b21e31a9/node_modules/@angular/compiler-cli/bundles/index.js?
See "/tmp/ng-daXJrV/angular-errors.log" for further details.

Here's the referenced log file:

[error] Error [ERR_MODULE_NOT_FOUND]: Cannot find package '@angular/compiler-cli' imported from /[redacted]/test-project/.yarn/unplugged/@angular-devkit-build-angular-virtual-032fd50c3d/node_modules/@angular-devkit/build-angular/src/utils/load-esm.js
Did you mean to import @angular-compiler-cli-virtual-76b21e31a9/node_modules/@angular/compiler-cli/bundles/index.js?
    at new NodeError (node:internal/errors:371:5)
    at packageResolve (node:internal/modules/esm/resolve:884:9)
    at moduleResolve (node:internal/modules/esm/resolve:929:18)
    at defaultResolve (node:internal/modules/esm/resolve:1044:11)
    at ESMLoader.resolve (node:internal/modules/esm/loader:422:30)
    at ESMLoader.getModuleJob (node:internal/modules/esm/loader:222:40)
    at ESMLoader.import (node:internal/modules/esm/loader:276:22)
    at importModuleDynamically (node:internal/modules/cjs/loader:1041:29)
    at importModuleDynamicallyWrapper (node:internal/vm/module:437:21)
    at importModuleDynamically (node:vm:381:46)

🌍 Your Environment

Angular CLI: 13.1.2
Node: 16.13.1
Package Manager: yarn 3.1.1
OS: linux x64

Angular: 13.1.1
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1301.2 (cli-only)
@angular-devkit/build-angular   13.1.2
@angular-devkit/core            13.1.2 (cli-only)
@angular-devkit/schematics      13.1.2 (cli-only)
@angular/cli                    13.1.2
@schematics/angular             13.1.2 (cli-only)
rxjs                            7.4.0
typescript                      4.5.4

Anything else relevant?

[alan-agius4]

This is because currently Yarn PNP doesn't support ESM and only works with the legacy Node.JS module system CommonJs.

ESM experimental support will available in Yarn PNP 3.2. For more context please see yarnpkg/berry#638 and yarnpkg/berry#2161. At this point this is not actionable by us.

Let's continue tracking Yarn PNP support in #16980.

[angular-automatic-lock-bot]

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