Error: Argument #2 ($haystack) must be of type array, null given

Here's a patch with the proposed solution.

Hi murilohp,

I applied your patch in my local and I confirmed that it fixed the TypeError: array_search():, however, I noticed that when I try to create or update a page in admin/structure/page_manager there's an error flagged in my dblog,

kindly look at the screenshot I attached for your reference.

Thank you

Hey @clarkssquared thanks for the testing, but I think this error has nothing to do with this issue, I suggest you to open another issue to address this error, apparently there's a call to this non exist service on the post save of the file: Drupal\page_manager_search\Entity\PageManagerSearch. I'll move this back to NR to see what you think.

Hi @ murilohp → , @ clarkssquared → ,

I have applied the patch on #2 🐛 Error: Argument #2 ($haystack) must be of type array, null given Needs review and it working fine on 2.0.x-dev. In addition, I am able to reproduce the issue mentioned on #3 🐛 Error: Argument #2 ($haystack) must be of type array, null given Needs review and even I would agree to create it as an another issue.

Apart from, I found an issue when submitting the Search Page form on /admin/config/search/pages. This time the error is from the deprecated core service has been used. I have updated it and created a patch. Please review and let me know.