Add @angular/platform-browser-dynamic to devDependencies

[Copilot]

Build fails with TS2307: Cannot find module '@angular/core/testing' when compiling src/test.ts. Angular 20+ requires @angular/platform-browser-dynamic in devDependencies for test infrastructure to resolve correctly.

Changes

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

The package remains in dependencies for runtime bootstrapping and is now also in devDependencies for test/build tooling, matching the pattern used by @angular/compiler-cli.

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=4075 --enable-crash-reporter=, --noerrdialogs --user-data-dir=/tmp/karma-92143563 --change-stack-guard-on-fork=enable --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,16867502568728548956,7665649024354702907,262144 --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-92143563 --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=92143563 --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=4075 --enable-crash-reporter=, --noerrdialogs --user-data-dir=/tmp/karma-92143563 --change-stack-guard-on-fork=enable --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,16867502568728548956,7665649024354702907,262144 --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-92143563 --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=92143563 --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=4075 --enable-crash-reporter=, --noerrdialogs --user-data-dir=/tmp/karma-92143563 --change-stack-guard-on-fork=enable --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,16867502568728548956,7665649024354702907,262144 --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-92143563 --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=92143563 --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=4075 --enable-crash-reporter=, --noerrdialogs --user-data-dir=/tmp/karma-92143563 --change-stack-guard-on-fork=enable --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,16867502568728548956,7665649024354702907,262144 --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-92143563 --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=92143563 --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=4075 --enable-crash-reporter=, --noerrdialogs --user-data-dir=/tmp/karma-92143563 --change-stack-guard-on-fork=enable --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,16867502568728548956,7665649024354702907,262144 --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-92143563 --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=92143563 --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=4075 --enable-crash-reporter=, --noerrdialogs --user-data-dir=/tmp/karma-92143563 --change-stack-guard-on-fork=enable --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,16867502568728548956,7665649024354702907,262144 --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-92143563 --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=92143563 --headless --disable-gpu --disable-dev-shm-usage --remote-debugging-port=9222 (dns block)

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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 (around line 57, after @angular/compiler-cli)

Reference

• Failing job: https://github.com/Jagoda11/angular-template/actions/runs/20629672313/job/59245630186
• Error occurs when building at commit: 1d5ce0a
• Test file requiring this: src/test.ts

This pull request was created from Copilot chat.

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[Jagoda11]

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