Add @angular/platform-browser-dynamic to devDependencies for Angular 20+

[Copilot]

Build failing with TS2307: Cannot find module '@angular/core/testing' when importing from @angular/platform-browser-dynamic/testing in src/test.ts.

Angular 20+ requires @angular/platform-browser-dynamic in both dependencies (runtime) and devDependencies (testing utilities).

Changes

• package.json: Added "@angular/platform-browser-dynamic": "^20.3.9" to devDependencies

The package remains in dependencies for runtime use and is now also available in devDependencies for test infrastructure.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• accounts.google.com
  • Triggering command: /proc/self/exe /proc/self/exe --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --disable-dev-shm-usage --use-angle=swiftshader-webgl --crashpad-handler-pid=3984 --enable-crash-reporter=, --noerrdialogs --user-data-dir=/tmp/karma-11473134 --change-stack-guard-on-fork=enable --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,18435233611224439785,35267596245435666,262144 --disable-features=PaintHolding --variations-seed-version --trace-process-track-uuid=3190708989122997041 (dns block)
  • Triggering command: /opt/google/chrome/chrome /usr/bin/google-chrome --user-data-dir=/tmp/karma-11473134 --enable-automation --no-default-browser-check --no-first-run --disable-default-apps --disable-popup-blocking --disable-translate --disable-REDACTED-timer-throttling --disable-renderer-REDACTEDing --disable-device-discovery-notifications http://localhost:9876/?id=11473134 --headless --disable-gpu --disable-dev-shm-usage --remote-debugging-port=9222 (dns block)
• clients2.google.com
  • Triggering command: /proc/self/exe /proc/self/exe --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --disable-dev-shm-usage --use-angle=swiftshader-webgl --crashpad-handler-pid=3984 --enable-crash-reporter=, --noerrdialogs --user-data-dir=/tmp/karma-11473134 --change-stack-guard-on-fork=enable --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,18435233611224439785,35267596245435666,262144 --disable-features=PaintHolding --variations-seed-version --trace-process-track-uuid=3190708989122997041 (dns block)
  • Triggering command: /opt/google/chrome/chrome /usr/bin/google-chrome --user-data-dir=/tmp/karma-11473134 --enable-automation --no-default-browser-check --no-first-run --disable-default-apps --disable-popup-blocking --disable-translate --disable-REDACTED-timer-throttling --disable-renderer-REDACTEDing --disable-device-discovery-notifications http://localhost:9876/?id=11473134 --headless --disable-gpu --disable-dev-shm-usage --remote-debugging-port=9222 (dns block)
• clientservices.googleapis.com
  • Triggering command: /proc/self/exe /proc/self/exe --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --disable-dev-shm-usage --use-angle=swiftshader-webgl --crashpad-handler-pid=3984 --enable-crash-reporter=, --noerrdialogs --user-data-dir=/tmp/karma-11473134 --change-stack-guard-on-fork=enable --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,18435233611224439785,35267596245435666,262144 --disable-features=PaintHolding --variations-seed-version --trace-process-track-uuid=3190708989122997041 (dns block)
  • Triggering command: /opt/google/chrome/chrome /usr/bin/google-chrome --user-data-dir=/tmp/karma-11473134 --enable-automation --no-default-browser-check --no-first-run --disable-default-apps --disable-popup-blocking --disable-translate --disable-REDACTED-timer-throttling --disable-renderer-REDACTEDing --disable-device-discovery-notifications http://localhost:9876/?id=11473134 --headless --disable-gpu --disable-dev-shm-usage --remote-debugging-port=9222 (dns block)
• redirector.gvt1.com
  • Triggering command: /proc/self/exe /proc/self/exe --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --disable-dev-shm-usage --use-angle=swiftshader-webgl --crashpad-handler-pid=3984 --enable-crash-reporter=, --noerrdialogs --user-data-dir=/tmp/karma-11473134 --change-stack-guard-on-fork=enable --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,18435233611224439785,35267596245435666,262144 --disable-features=PaintHolding --variations-seed-version --trace-process-track-uuid=3190708989122997041 (dns block)
  • Triggering command: /opt/google/chrome/chrome /usr/bin/google-chrome --user-data-dir=/tmp/karma-11473134 --enable-automation --no-default-browser-check --no-first-run --disable-default-apps --disable-popup-blocking --disable-translate --disable-REDACTED-timer-throttling --disable-renderer-REDACTEDing --disable-device-discovery-notifications http://localhost:9876/?id=11473134 --headless --disable-gpu --disable-dev-shm-usage --remote-debugging-port=9222 (dns block)
• safebrowsingohttpgateway.googleapis.com
  • Triggering command: /proc/self/exe /proc/self/exe --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --disable-dev-shm-usage --use-angle=swiftshader-webgl --crashpad-handler-pid=3984 --enable-crash-reporter=, --noerrdialogs --user-data-dir=/tmp/karma-11473134 --change-stack-guard-on-fork=enable --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,18435233611224439785,35267596245435666,262144 --disable-features=PaintHolding --variations-seed-version --trace-process-track-uuid=3190708989122997041 (dns block)
  • Triggering command: /opt/google/chrome/chrome /usr/bin/google-chrome --user-data-dir=/tmp/karma-11473134 --enable-automation --no-default-browser-check --no-first-run --disable-default-apps --disable-popup-blocking --disable-translate --disable-REDACTED-timer-throttling --disable-renderer-REDACTEDing --disable-device-discovery-notifications http://localhost:9876/?id=11473134 --headless --disable-gpu --disable-dev-shm-usage --remote-debugging-port=9222 (dns block)
• www.google.com
  • Triggering command: /proc/self/exe /proc/self/exe --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --disable-dev-shm-usage --use-angle=swiftshader-webgl --crashpad-handler-pid=3984 --enable-crash-reporter=, --noerrdialogs --user-data-dir=/tmp/karma-11473134 --change-stack-guard-on-fork=enable --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,18435233611224439785,35267596245435666,262144 --disable-features=PaintHolding --variations-seed-version --trace-process-track-uuid=3190708989122997041 (dns block)
  • Triggering command: /opt/google/chrome/chrome /usr/bin/google-chrome --user-data-dir=/tmp/karma-11473134 --enable-automation --no-default-browser-check --no-first-run --disable-default-apps --disable-popup-blocking --disable-translate --disable-REDACTED-timer-throttling --disable-renderer-REDACTEDing --disable-device-discovery-notifications http://localhost:9876/?id=11473134 --headless --disable-gpu --disable-dev-shm-usage --remote-debugging-port=9222 (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

Problem

The build is failing with this error:

TS2307: Cannot find module '@angular/core/testing' or its corresponding type declarations.

This is occurring in src/test.ts which imports from @angular/platform-browser-dynamic/testing.

Root Cause

The @angular/platform-browser-dynamic package is currently only in the dependencies section, but it needs to also be in devDependencies for the testing utilities to be available during the build process in Angular 20+.

Solution

Add @angular/platform-browser-dynamic to the devDependencies section of package.json with version ^20.3.9 to match the other Angular packages.

File to Update

• package.json: Add "@angular/platform-browser-dynamic": "^20.3.9" to the devDependencies object

Reference

• Failing job: https://github.com/Jagoda11/angular-template/actions/runs/20629672313/job/59245630186
• Error occurs when building at commit: 1d5ce0a

This pull request was created from Copilot chat.

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[Jagoda11]

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