Hi Nicolas,
So, I tested and:
1 - Yes, the "HikaShop MIGS VPC payment plugin" with ID 10336 is already installed, while the migsvpc_j15 in Discover has ID 10485
2 - "migsvpc_j15 xml is only for Joomla 1.5" - But my site started from Joomla 3.x !
3 - So, I created a new subdomain (PHP 5.4.8 - mySQLi 5.5.32-cll - Apache 2.2.26) and installed a new clean Joomla 3.2.3, configured "Error Reporting: Development" and installed last HikaShop Business 2.3.0 Uploading the package file = installation OK = BUT, in Extension Manager Discover clicking on "discover":
- migsvpc_j15
the plugin is there! So, I think this is something need to be fixed in HikaShop. Please, let me know if you want test site credentials and let me know if you can replicate the error.
4 - "You should just ignore these entries": Not a good "answer". Please, How to erase it (also manually) from the discover list ? There I can only find an "install" button
Many Thanks for support!