Getting errors in drupal-10.1.5 and Drupal-9.5.11

The error solved after install AMP Module → .

Still getting below errors.

TypeError: Unsupported operand types: array + null in Drupal\big_pipe\Render\BigPipe->sendPlaceholders() (line 578 of /app/web/core/modules/big_pipe/src/Render/BigPipe.php)
#0 /app/web/core/modules/big_pipe/src/Render/BigPipe.php(305): Drupal\big_pipe\Render\BigPipe->sendPlaceholders(Array, Array, Object(Drupal\Core\Asset\AttachedAssets))

Deprecated function: dirname(): Passing null to parameter #1 ($path) of type string is deprecated in Drupal\Core\Extension\ExtensionPathResolver->getPath() (line 85 of /app/web/core/lib/Drupal/Core/Extension/ExtensionPathResolver.php)
#0 /app/web/core/includes/bootstrap.inc(164): _drupal_error_handler_real(8192, 'dirname(): Pass...', '/app/web/core/l...', 85)
#1 [internal function]: _drupal_error_handler(8192, 'dirname(): Pass...', '/app/web/core/l...', 85)
#2 /app/web/core/lib/Drupal/Core/Extension/ExtensionPathResolver.php(85): dirname(NULL)
#3 /app/web/core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php(127): Drupal\Core\Extension\ExtensionPathResolver->getPath('theme', 'amp')

Hi @ravikant, Able to reproduce the issue with Drupal 10 and module version 8.x-3.1, but the issue is resolved by installing the respective version of the amp and amptheme, for ex - 8.x-3.1 of amp theme should work with amp 8.x-3.1.

The issue is also in Drupal-9.5.11.

Hi - take a look at the final comment in #3394828: AMP Theme Error on simplytest.me that is "The website encountered an unexpected error. Please try again later." → as the reason for the error you are now seeing in #3 is an incompatibility between AMP and BigPipe module.

There’s a link there to the composer.json changes needed to ensure this doesn’t occur but, for the purposes of simply test.me, just uninstall BigPipe.

Thank you @ravi kant