Subtheme error

Open on Drupal.org →

Created on 1 August 2023, 11 months ago

Updated 3 October 2023, 9 months ago

Problem/Motivation

Followed
https://www.drupal.org/docs/8/themes/barrio-bootstrap-4-drupal-8-theme/c... → and created a subtheme called "mysubtheme"

I get the below error in my Drupal 9.5.10 dashboard:

****

Warning: foreach() argument must be of type array|object, string given in Drupal\Core\Asset\LibraryDiscoveryParser->buildByExtension() (line 198 of core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php).
Drupal\Core\Asset\LibraryDiscoveryParser->buildByExtension('mysubtheme') (Line: 87)
Drupal\Core\Asset\LibraryDiscoveryCollector->getLibraryDefinitions('mysubtheme') (Line: 66)
Drupal\Core\Asset\LibraryDiscoveryCollector->resolveCacheMiss('mysubtheme') (Line: 149)
Drupal\Core\Cache\CacheCollector->get('mysubtheme') (Line: 44)
Drupal\Core\Asset\LibraryDiscovery->getLibrariesByExtension('mysubtheme') (Line: 58)
Drupal\Core\Asset\LibraryDiscovery->getLibraryByName('mysubtheme', 'bootstrap_cdn') (Line: 68)
Drupal\Core\Asset\LibraryDependencyResolver->doGetDependencies(Array) (Line: 41)
Drupal\Core\Asset\LibraryDependencyResolver->getLibrariesWithDependencies(Array) (Line: 104)
Drupal\Core\Asset\AssetResolver->getLibrariesToLoad(Object) (Line: 116)
Drupal\Core\Asset\AssetResolver->getCssAssets(Object, ) (Line: 311)
Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAssetLibraries(Object, Array) (Line: 157)
Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAttachments(Object) (Line: 94)
Drupal\big_pipe\Render\BigPipeResponseAttachmentsProcessor->processAttachments(Object) (Line: 45)
Drupal\Core\EventSubscriber\HtmlResponseSubscriber->onRespond(Object, 'kernel.response', Object)
call_user_func(Array, Object, 'kernel.response', Object) (Line: 142)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.response') (Line: 202)
Symfony\Component\HttpKernel\HttpKernel->filterResponse(Object, Object, 1) (Line: 190)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 81)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 718)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)
Warning: foreach() argument must be of type array|object, string given in Drupal\Core\Asset\LibraryDiscoveryParser->buildByExtension() (line 198 of core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php).
Drupal\Core\Asset\LibraryDiscoveryParser->buildByExtension('mysubtheme') (Line: 87)
Drupal\Core\Asset\LibraryDiscoveryCollector->getLibraryDefinitions('mysubtheme') (Line: 66)
Drupal\Core\Asset\LibraryDiscoveryCollector->resolveCacheMiss('mysubtheme') (Line: 149)
Drupal\Core\Cache\CacheCollector->get('mysubtheme') (Line: 44)
Drupal\Core\Asset\LibraryDiscovery->getLibrariesByExtension('mysubtheme') (Line: 58)
Drupal\Core\Asset\LibraryDiscovery->getLibraryByName('mysubtheme', 'bootstrap_cdn') (Line: 68)
Drupal\Core\Asset\LibraryDependencyResolver->doGetDependencies(Array) (Line: 41)
Drupal\Core\Asset\LibraryDependencyResolver->getLibrariesWithDependencies(Array) (Line: 104)
Drupal\Core\Asset\AssetResolver->getLibrariesToLoad(Object) (Line: 116)
Drupal\Core\Asset\AssetResolver->getCssAssets(Object, ) (Line: 311)
Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAssetLibraries(Object, Array) (Line: 157)
Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAttachments(Object) (Line: 94)
Drupal\big_pipe\Render\BigPipeResponseAttachmentsProcessor->processAttachments(Object) (Line: 45)
Drupal\Core\EventSubscriber\HtmlResponseSubscriber->onRespond(Object, 'kernel.response', Object)
call_user_func(Array, Object, 'kernel.response', Object) (Line: 142)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.response') (Line: 202)
Symfony\Component\HttpKernel\HttpKernel->filterResponse(Object, Object, 1) (Line: 190)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 81)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 718)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)
Warning: foreach() argument must be of type array|object, string given in Drupal\Core\Asset\LibraryDiscoveryParser->buildByExtension() (line 198 of core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php).
Drupal\Core\Asset\LibraryDiscoveryParser->buildByExtension('mysubtheme') (Line: 87)
Drupal\Core\Asset\LibraryDiscoveryCollector->getLibraryDefinitions('mysubtheme') (Line: 66)
Drupal\Core\Asset\LibraryDiscoveryCollector->resolveCacheMiss('mysubtheme') (Line: 149)
Drupal\Core\Cache\CacheCollector->get('mysubtheme') (Line: 44)
Drupal\Core\Asset\LibraryDiscovery->getLibrariesByExtension('mysubtheme') (Line: 58)
Drupal\Core\Asset\LibraryDiscovery->getLibraryByName('mysubtheme', 'bootstrap_cdn') (Line: 68)
Drupal\Core\Asset\LibraryDependencyResolver->doGetDependencies(Array) (Line: 41)
Drupal\Core\Asset\LibraryDependencyResolver->getLibrariesWithDependencies(Array) (Line: 104)
Drupal\Core\Asset\AssetResolver->getLibrariesToLoad(Object) (Line: 116)
Drupal\Core\Asset\AssetResolver->getCssAssets(Object, ) (Line: 311)
Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAssetLibraries(Object, Array) (Line: 157)
Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAttachments(Object) (Line: 94)
Drupal\big_pipe\Render\BigPipeResponseAttachmentsProcessor->processAttachments(Object) (Line: 45)
Drupal\Core\EventSubscriber\HtmlResponseSubscriber->onRespond(Object, 'kernel.response', Object)
call_user_func(Array, Object, 'kernel.response', Object) (Line: 142)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.response') (Line: 202)
Symfony\Component\HttpKernel\HttpKernel->filterResponse(Object, Object, 1) (Line: 190)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 81)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 718)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

****

Steps to reproduce

Wondering how to troubleshoot this.

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes

💬 Support request

Status

Fixed

Version

5.5

Component

Code

Created by

🇺🇸United States hcanning

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Comments & Activities

Issue created by @hcanning
Status changed to Postponed: needs info 11 months ago3:09am 1 August 2023
Comment 11 months ago →
🇵🇪Peru hatuhay Lima
The issue looks related with how the bootstrap library is loaded on your subtheme

Comment 11 months ago →

🇺🇸United States hcanning

Hi,
The bootstrap yml files in question are:

mysubtheme.info.yml

libraries:
  - mysubtheme/bootstrap_cdn
  - mysubtheme/global-styling

mysubtheme.libraries.yml

bootstrap:
  js:
    /libraries/bootstrap/dist/js/bootstrap.min.js: {}
  css:
    component:
      /libraries/bootstrap/dist/css/bootstrap.min.css: {}
  dependencies:
    - core/popperjs
bootstrap_cdn:
  js:
    //cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js: { type: external, minified: true }
  css:
    component:
      //cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css: { type: external, minified: true }

Thanks

Comment 9 months ago →
🇮🇳India ravi kant Jaipur
@hcanning
I just tried creating a new theme and did not get this type of errors.
Do you still need support, or is it solved now?
Assigned to hcanning
Status changed to Fixed 9 months ago1:46pm 3 October 2023
Comment 9 months ago →
🇺🇸United States hcanning
Incorrect syntax in yml. User error.
Comment 8 months ago →
System Message
Automatically closed - issue fixed for 2 weeks with no activity.

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