How to debug the vsbridge indexer?

I’m stuck with this error when I run the vsbridge indexer on M2:
Vsbridge Cms Block Indexer index has been rebuilt successfully in 00:00:06
Vsbridge Cms Page Indexer index has been rebuilt successfully in 00:00:01
Vsbridge Product Indexer indexer process unknown error:
Vsbridge Category Indexer index has been rebuilt successfully in 00:00:53
Vsbridge Attributes Indexer index has been rebuilt successfully in 00:00:06
Vsbridge Review Indexer index has been rebuilt successfully in 00:00:00
Vsbridge Tax Rule Indexer index has been rebuilt successfully in 00:00:01

How can I debug it? There are no logs available on the var/log folder…

Your best bet is look into magento logs the issue will be listed there. Usually this is because you had custom logic with custom created attributes that cannot be validated currently.
can you also provide us with the vsbridge indexer release you’re using?

Hi @jan,

as I wrote, “There are no logs available on the var/log folder”.

The version of M2 is 2.3.4
About the vsbridge module, I don’t know where to search the release version.

In that case it could be a notice you have available in webserver logs

There is nothing about it on the webserver logs @jan
Other ideas?

I found that this problem occurs when I set this option to yes:
Export attributes_metadata for product

It could be so useful to know a way to debug it…

Option Export attributes_metadata for product is quite new and only has been tested on Magento Sample data.

I have no idea why you didn’t got any error message, but this feature you can verify/debug in file

I check with Magento sample data and it worked without a problem.

Ok, thanks for your help @afirlejczyk
So, I can debug from here.

Yes, Let me know what cause the problem - some custom attribute?
I will try to reproduce error on clean Magento and make a fix.

I will not work on this project for a while… But, yes, this problem started when I’ve imported products (and attributes) from an M1 website to a M2 fresh installation. Before, the bridge on M2 worked perfectly, so I strongly think that could be related to a custom attribute.