Calling Drupal\Core\Database\Query\Condition::condition() without an array compatible operator is not supported

Working on it.

Hi @batigolix,
I've tried this on 7.x-dev.zip on D11 site, as we have to choose the operators according to the amount of items available so I've modified the code with appropriate checks with testing. I am providing a patch which you can test.

Just to know that this issue repo has a file which is not there in 7.x-dev version and this version is causion error
Drupal\Component\Plugin\Exception\PluginException: Plugin (taxonomy_index_name_depth) instance class "Drupal\views_taxonomy_term_name_depth\Plugin\views\argument\IndexNameDepth" does not exist. in Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass() (line 97 of /app/web/core/lib/Drupal/Component/Plugin/Factory/DefaultFactory.php).

pls check this also

Thanks,
Arun

Tested on Drupal 11. The patch fixes the invalid query operator issue caused by using '=' with an array — a change enforced in D11 per change record #3350985.
The patch applies cleanly and views using the contextual filter work with both single and multiple values also No database errors, and results are accurate.
Thus Marking this as Reviewed & Tested by the Community (RTBC).

@arunsahijpal Thank you so much for the patch, Please see the following for the patch file name format. https://www.drupal.org/docs/develop/git/using-git-to-contribute-to-drupa... →

some reason I am not able to apply against the 7.x branch.

error: patch failed: src/Plugin/views/argument/IndexNameDepth.php:165                                                      ─╯
error: src/Plugin/views/argument/IndexNameDepth.php: patch does not apply
error: patch failed: views_taxonomy_term_name_depth.info.yml:2
error: views_taxonomy_term_name_depth.info.yml: patch does not apply

Automatically closed - issue fixed for 2 weeks with no activity.