we can't find products matching the selection, error after upgrade from Magento 2.2.5 to 2.4

[5e48be49ecff7]

Hi all,

I upgrade the version of my Magento site to 2.4.2. After that, the products are showing on Frontend. 
Can you please help me out to fix it. 
elasticsearch is installed and enabled in the system. 
Please see the attached image. 

Thanks in Advance. 

[achalsaxen5d55]

did you assigned product in respective category if not then you need to assign that product in some category.

once you do this run below command:

php bin/magento indexer:reindex

php bin/magento cache:flush

it will reindex catalog table as well as others tables like price,Qty etc.

Hope this helps you.

if above answer was helpful then please Accept as Solution & give Kudos

[SaraJennif6e13]

I have upgraded from 2.0.7 to 2.1.1.Then i have the same issue where i cant able to see ant products.