Error message

• Warning: Undefined array key 1 in Drupal\Core\Asset\AssetResolver->filterLibrariesByType() (line 158 of core/lib/Drupal/Core/Asset/AssetResolver.php).

  Drupal\Core\Asset\AssetResolver->filterLibrariesByType() (Line: 120)
  Drupal\Core\Asset\AssetResolver->getLibrariesToLoad() (Line: 175)
  Drupal\Core\Asset\AssetResolver->getCssAssets() (Line: 323)
  Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAssetLibraries() (Line: 167)
  Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAttachments() (Line: 45)
  Drupal\Core\EventSubscriber\HtmlResponseSubscriber->onRespond()
  call_user_func() (Line: 111)
  Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 214)
  Symfony\Component\HttpKernel\HttpKernel->filterResponse() (Line: 202)
  Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
  Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
  Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
  Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
  Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 116)
  Drupal\page_cache\StackMiddleware\PageCache->pass() (Line: 90)
  Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 50)
  Drupal\ban\BanMiddleware->handle() (Line: 48)
  Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
  Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
  Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
  Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
  Drupal\Core\DrupalKernel->handle() (Line: 19)
  

• Warning: Undefined array key 1 in Drupal\Core\Asset\AssetResolver->filterLibrariesByType() (line 158 of core/lib/Drupal/Core/Asset/AssetResolver.php).

  Drupal\Core\Asset\AssetResolver->filterLibrariesByType() (Line: 139)
  Drupal\Core\Asset\AssetResolver->getLibrariesToLoad() (Line: 175)
  Drupal\Core\Asset\AssetResolver->getCssAssets() (Line: 323)
  Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAssetLibraries() (Line: 167)
  Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAttachments() (Line: 45)
  Drupal\Core\EventSubscriber\HtmlResponseSubscriber->onRespond()
  call_user_func() (Line: 111)
  Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 214)
  Symfony\Component\HttpKernel\HttpKernel->filterResponse() (Line: 202)
  Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
  Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
  Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
  Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
  Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 116)
  Drupal\page_cache\StackMiddleware\PageCache->pass() (Line: 90)
  Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 50)
  Drupal\ban\BanMiddleware->handle() (Line: 48)
  Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
  Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
  Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
  Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
  Drupal\Core\DrupalKernel->handle() (Line: 19)
  

• Warning: Undefined array key 1 in Drupal\Core\Asset\AssetResolver->filterLibrariesByType() (line 158 of core/lib/Drupal/Core/Asset/AssetResolver.php).

  Drupal\Core\Asset\AssetResolver->filterLibrariesByType() (Line: 120)
  Drupal\Core\Asset\AssetResolver->getLibrariesToLoad() (Line: 278)
  Drupal\Core\Asset\AssetResolver->getJsAssets() (Line: 330)
  Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAssetLibraries() (Line: 167)
  Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAttachments() (Line: 45)
  Drupal\Core\EventSubscriber\HtmlResponseSubscriber->onRespond()
  call_user_func() (Line: 111)
  Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 214)
  Symfony\Component\HttpKernel\HttpKernel->filterResponse() (Line: 202)
  Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
  Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
  Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
  Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
  Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 116)
  Drupal\page_cache\StackMiddleware\PageCache->pass() (Line: 90)
  Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 50)
  Drupal\ban\BanMiddleware->handle() (Line: 48)
  Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
  Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
  Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
  Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
  Drupal\Core\DrupalKernel->handle() (Line: 19)
  

• Warning: Undefined array key 1 in Drupal\Core\Asset\AssetResolver->filterLibrariesByType() (line 158 of core/lib/Drupal/Core/Asset/AssetResolver.php).

  Drupal\Core\Asset\AssetResolver->filterLibrariesByType() (Line: 139)
  Drupal\Core\Asset\AssetResolver->getLibrariesToLoad() (Line: 278)
  Drupal\Core\Asset\AssetResolver->getJsAssets() (Line: 330)
  Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAssetLibraries() (Line: 167)
  Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAttachments() (Line: 45)
  Drupal\Core\EventSubscriber\HtmlResponseSubscriber->onRespond()
  call_user_func() (Line: 111)
  Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 214)
  Symfony\Component\HttpKernel\HttpKernel->filterResponse() (Line: 202)
  Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
  Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
  Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
  Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
  Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 116)
  Drupal\page_cache\StackMiddleware\PageCache->pass() (Line: 90)
  Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 50)
  Drupal\ban\BanMiddleware->handle() (Line: 48)
  Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
  Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
  Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
  Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
  Drupal\Core\DrupalKernel->handle() (Line: 19)