webpack build failes - Can't resolve 'class-transformer/storage'

[yifanwww]

Is there an existing issue for this?

• I have searched the existing issues

Current behavior

Build failes with 1 module not found error:

Module not found: Error: Can't resolve 'class-transformer/storage' in ...

Minimum reproduction code

https://gist.github.com/yifanwww/0e843ee0d5ba66a2dfd34fe3300c66bf

Steps to reproduce

1. nest new test
2. add/install class-validator, class-transformer and @nestjs/mapped-types
3. update nest-cli.json to switch builder to webpack (according to https://docs.nestjs.com/cli/monorepo#global-compiler-options)
4. create webpack.config.js with following contents (according to https://docs.nestjs.com/cli/monorepo#webpack-options):

module.exports = {
  externals: [],
};

5. add the following code to src/main.ts

import { IntersectionType } from '@nestjs/mapped-types';

class DtoA {}

class DtoB {}

class DtoC extends IntersectionType(DtoA, DtoB) {}

DtoC;

6. npm run build produces 1 error

Module not found: Error: Can't resolve 'class-transformer/storage' in ...

Expected behavior

lib/compiler/defaults/webpack-defaults/ts should be upgraded as following shows

          const lazyImports = [
            '@nestjs/microservices',
            '@nestjs/microservices/microservices-module',
            '@nestjs/websockets/socket-module',
            'class-validator',
            'class-transformer',
+            'class-transformer/storage',
          ];

Package version

10.4.8

NestJS version

10.3.8

Node.js version

20.17.0

In which operating systems have you tested?

• macOS
• Windows
• Linux

Other

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relevant to this issue

[kamilmysliwiec]

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