build sometime fails with exit code 3221226356 on windows

[ChristopherKuehnelNexus]

Command

build

Is this a regression?

• Yes, this behavior used to work in the previous version

The previous version in which this bug was not present was

18.2.20

Description

Hello,

I'm facing an issue I can not find the reason for. We have libraries that we want to update from angular 18 to 20. Sadly when building them on our build server we often run into ELIFECYCLE  Command failed with exit code 3221226356.. I can reproduce this locally on my machine (Windows 10) and on another machine (Windows 11). I was not able to reproduce this on a ubuntu 24 machine.

Minimal Reproduction

I have added the source code (since it's business code, I removed most of it, but the error persists for me) here: https://github.com/ChristopherKuehnelNexus/angularheap

There are also 3 .txt files that do include different outputs depending on what I did.

Exception or Error

ELIFECYCLE  Command failed with exit code 3221226356.

Your Environment

Angular CLI: 20.3.14
Node: 24.10.0
Package Manager: pnpm 10.28.0
OS: win32 x64


Angular: 20.3.16
... common, compiler, compiler-cli, core, platform-browser
... platform-browser-dynamic

Package                         Version
---------------------------------------
@angular-devkit/architect       0.1802.20
@angular-devkit/build-angular   20.3.14
@angular-devkit/core            20.3.14
@angular-devkit/schematics      20.3.14
@angular/cli                    20.3.14
@schematics/angular             18.2.20
ng-packagr                      20.3.2
rxjs                            7.8.2
typescript                      5.9.3
webpack                         5.104.1
zone.js                         0.15.1

Anything else relevant?

I hoped to find a cause here: https://stackoverflow.com/questions/79863129/ng-build-crashes-with-heap-corruption-exit-code-1073740940-on-node-js-24-duri but sadly still no idea. I also tried some circular dependency scan tool but without any luck.

Since this is my first report here, I hope to have provided all required information and choosing the correct repo 😃

[alan-agius4]

Can you please provide the output of “pnpm ls rollup”?

[ChristopherKuehnelNexus]

PS C:\Source\swl-modal-lib> pnpm ls rollup
PS C:\Source\swl-modal-lib> 

I seem to get no output at all 🤔. It's in the pnpm-lock.yaml though. So I checked pnpm why rollup as well:

PS C:\Source\swl-modal-lib> pnpm why rollup
Legend: production dependency, optional only, dev only

swl-modal-lib@0.0.0 C:\Source\swl-modal-lib

dependencies:
@angular-builders/custom-webpack 20.0.0
└─┬ @angular-devkit/build-angular 20.3.14
  ├─┬ @angular/build 20.3.14
  │ ├─┬ @vitejs/plugin-basic-ssl 2.1.0
  │ │ └─┬ vite 7.1.11 peer
  │ │   └── rollup 4.52.3
  │ ├─┬ ng-packagr 20.3.2 peer
  │ │ ├─┬ @rollup/plugin-json 6.1.0
  │ │ │ ├─┬ @rollup/pluginutils 5.3.0
  │ │ │ │ └── rollup 4.55.2 peer
  │ │ │ └── rollup 4.55.2 peer
  │ │ ├── rollup 4.55.2
  │ │ └─┬ rollup-plugin-dts 6.3.0
  │ │   └── rollup 4.55.2 peer
  │ ├── rollup 4.52.3
  │ └─┬ vite 7.1.11
  │   └── rollup 4.52.3
  └─┬ ng-packagr 20.3.2 peer
    ├─┬ @rollup/plugin-json 6.1.0
    │ ├─┬ @rollup/pluginutils 5.3.0
    │ │ └── rollup 4.55.2 peer
    │ └── rollup 4.55.2 peer
    └─┬ rollup-plugin-dts 6.3.0
      └── rollup 4.55.2 peer

devDependencies:
@angular-devkit/build-angular 20.3.14
├─┬ @angular/build 20.3.14
│ ├─┬ @vitejs/plugin-basic-ssl 2.1.0
│ │ └─┬ vite 7.1.11 peer
│ │   └── rollup 4.52.3
│ ├─┬ ng-packagr 20.3.2 peer
│ │ ├─┬ @rollup/plugin-json 6.1.0
│ │ │ ├─┬ @rollup/pluginutils 5.3.0
│ │ │ │ └── rollup 4.55.2 peer
│ │ │ └── rollup 4.55.2 peer
│ │ ├── rollup 4.55.2
│ │ └─┬ rollup-plugin-dts 6.3.0
│ │   └── rollup 4.55.2 peer
│ ├── rollup 4.52.3
│ └─┬ vite 7.1.11
│   └── rollup 4.52.3
└─┬ ng-packagr 20.3.2 peer
  ├─┬ @rollup/plugin-json 6.1.0
  │ ├─┬ @rollup/pluginutils 5.3.0
  │ │ └── rollup 4.55.2 peer
  │ └── rollup 4.55.2 peer
  ├── rollup 4.55.2
  └─┬ rollup-plugin-dts 6.3.0
    └── rollup 4.55.2 peer
ng-packagr 20.3.2
├─┬ @rollup/plugin-json 6.1.0
│ ├─┬ @rollup/pluginutils 5.3.0
│ │ └── rollup 4.55.2 peer
│ └── rollup 4.55.2 peer
├── rollup 4.55.2
└─┬ rollup-plugin-dts 6.3.0
  └── rollup 4.55.2 peer

[alan-agius4]

Please upgrade rollup to version 4.57.1 or higher. This is usually resolved by regenerating the lockfile.

[ChristopherKuehnelNexus]

PS C:\Source\swl-modal-lib> pnpm why rollup
Legend: production dependency, optional only, dev only

swl-modal-lib@0.0.0 C:\Source\swl-modal-lib

dependencies:
@angular-builders/custom-webpack 20.0.0
└─┬ @angular-devkit/build-angular 20.3.15
  ├─┬ @angular/build 20.3.15
  │ ├─┬ @vitejs/plugin-basic-ssl 2.1.0
  │ │ └─┬ vite 7.1.11 peer
  │ │   └── rollup 4.52.3
  │ ├─┬ ng-packagr 20.3.2 peer
  │ │ ├─┬ @rollup/plugin-json 6.1.0
  │ │ │ ├─┬ @rollup/pluginutils 5.3.0
  │ │ │ │ └── rollup 4.57.1 peer
  │ │ │ └── rollup 4.57.1 peer
  │ │ ├── rollup 4.57.1
  │ │ └─┬ rollup-plugin-dts 6.3.0
  │ │   └── rollup 4.57.1 peer
  │ ├── rollup 4.52.3
  │ └─┬ vite 7.1.11
  │   └── rollup 4.52.3
  └─┬ ng-packagr 20.3.2 peer
    ├─┬ @rollup/plugin-json 6.1.0
    │ ├─┬ @rollup/pluginutils 5.3.0
    │ │ └── rollup 4.57.1 peer
    │ └── rollup 4.57.1 peer
    └─┬ rollup-plugin-dts 6.3.0
      └── rollup 4.57.1 peer

devDependencies:
@angular-devkit/build-angular 20.3.15
├─┬ @angular/build 20.3.15
│ ├─┬ @vitejs/plugin-basic-ssl 2.1.0
│ │ └─┬ vite 7.1.11 peer
│ │   └── rollup 4.52.3
│ ├─┬ ng-packagr 20.3.2 peer
│ │ ├─┬ @rollup/plugin-json 6.1.0
│ │ │ ├─┬ @rollup/pluginutils 5.3.0
│ │ │ │ └── rollup 4.57.1 peer
│ │ │ └── rollup 4.57.1 peer
│ │ ├── rollup 4.57.1
│ │ └─┬ rollup-plugin-dts 6.3.0
│ │   └── rollup 4.57.1 peer
│ ├── rollup 4.52.3
│ └─┬ vite 7.1.11
│   └── rollup 4.52.3
└─┬ ng-packagr 20.3.2 peer
  ├─┬ @rollup/plugin-json 6.1.0
  │ ├─┬ @rollup/pluginutils 5.3.0
  │ │ └── rollup 4.57.1 peer
  │ └── rollup 4.57.1 peer
  ├── rollup 4.57.1
  └─┬ rollup-plugin-dts 6.3.0
    └── rollup 4.57.1 peer
ng-packagr 20.3.2
├─┬ @rollup/plugin-json 6.1.0
│ ├─┬ @rollup/pluginutils 5.3.0
│ │ └── rollup 4.57.1 peer
│ └── rollup 4.57.1 peer
├── rollup 4.57.1
└─┬ rollup-plugin-dts 6.3.0
  └── rollup 4.57.1 peer

After deleting the node_modules folder and running pnpm install again, I see most references updates but one.

Then I got back to testing (deleting the node_modules, dist and .angular folder if existing, doing this via windows explorer), sadly the second build failed with the same error:

PS C:\Source\swl-modal-lib> pnpm run build

> swl-modal-lib@0.0.0 build C:\Source\swl-modal-lib
> ng build

Building Angular Package

------------------------------------------------------------------------------
Building entry point '@swl/modal-lib'
------------------------------------------------------------------------------
✔ Compiling with Angular sources in partial compilation mode.
✔ Generating FESM and DTS bundles
✔ Copying assets
✔ Writing package manifest
✔ Built @swl/modal-lib

------------------------------------------------------------------------------
Built Angular Package
- from: C:/Source/swl-modal-lib/projects/swl/modal-lib
- to:   C:/Source/swl-modal-lib/dist/swl/modal-lib
------------------------------------------------------------------------------

Build at: 2026-02-03T08:13:44.655Z - Time: 1641ms

PS C:\Source\swl-modal-lib> npm install

added 962 packages in 1m

187 packages are looking for funding
  run `npm fund` for details
PS C:\Source\swl-modal-lib> pnpm run build

> swl-modal-lib@0.0.0 build C:\Source\swl-modal-lib
> ng build

Building Angular Package

------------------------------------------------------------------------------
Building entry point '@swl/modal-lib'
------------------------------------------------------------------------------
✔ Compiling with Angular sources in partial compilation mode.
 ELIFECYCLE  Command failed with exit code 3221226356.

[alan-agius4]

I’ve successfully reproduced the issue using the command provided. It appears the --max-old-space-size configuration is the culprit. Removing it allows the compilation to complete successfully.

[ChristopherKuehnelNexus]

Thats interesting. The NODE_OPTIONS="--max-old-space-size=8192" is defined in our jenkinsfile for this test repo, but we added this only after we started having the issue. We also have this issue without that option. Locally I'm not using this command but only pnpm run build.

Just in case: Sometimes the build (with removing folders) works 9/10 times, sometimes it's just the other way around.