Class Mageprince\Productattach\Api\ProductattachInterface does not exist

[mtjweb]

I upgraded to version 2.0.3 and got the following error when running the command php bin/magento setup:upgrade.

Class Mageprince\Productattach\Api\ProductattachInterface does not exist

I'm using Magento 2.3.5-p1

[mageprince]

@mtjweb Please try after run php bin/magento s:d:c or please remove generated/code and var/cache, var/page_cache.

[mtjweb]

Tried it, but the error is still there.

[mageprince]

@mtjweb Which was the old version of the product attachment module?

[mtjweb]

I'm not sure which version exactly, but I know it was somewhere in the first version. So v1.?.?

[mageprince]

Are you using composer to update the module ?

[mtjweb]

No, downloaded it on marketplace.magento.com.

[mageprince]

What is the module path ? like app/code/ ?

[mtjweb]

I see it, the path changed. I corrected it. But when I open a product under Catalog => Products, I'm getting the following error:

SQLSTATE[42S02]: Base table or view not found: 1146 Table 'dbname.prince_productattach_relation' doesn't exist, query was: SELECT main_table.* FROM prince_productattach_relation AS main_table WHERE (product_id = '46')

I checked the database and the table prince_productattach_relation is missing.

[mageprince]

Yes, module path must be app/code/Mageprince/Productattach
For missing table, just remove module entry Prince_Productattach and Mageprince_Productattach from table setup_module and run following commands.

php bin/magento set:up
php bin/magento s:d:c
php bin/magento s:s:d

[mtjweb]

Thank you, that solved the problem.