Update to the com_jfbconnect_j2.5_v4.3.0

Those errors seem to indicate that v4.3 is already installed. Was version 4.3 already installed on this system before you tried to install it again? If so, then the tables that 4.3 is trying to create are already there, and that's why the error is being thrown. If 4.3 was installed, you likely can just ignore those errors.

If 4.3 wasn't already installed, let us know, as that'd be a big problem. You shouldn't ever downgrade our extensions or else issues like this will occur as tables are modified with many releases. There's no way to properly downgrade and revert the tables as the 'old' version won't know what's changed in the 'new' version to undo those changes.

Hope that helps,
Alex

Sean,
The warnings during installation are just that, warnings. You shouldn't run into any issues by downgrading and upgrading, we just don't conceal the warnings while we're trying to re-update the database.

If you are running into actual issues after the install process, let us know and we'll help you diagnose and fix them.

Thanks,
Alex

Ahh.. If you're using the Automatic Updater built-in to JFBConnect, try downloading the original package files from the My Subscriptions area and installing that way.

If that doesn't work, can you paste a picture of the error page you're seeing? We don't test downgrades and upgrades with every release, but, to my knowledge, it shouldn't break. Either way, we can definitely get you fixed up without loosing any of your configuration or user settings.. just may take a little investigation.

The main problem is that when you uninstall, we don't uninstall or revert the database tables. That's so that you don't have to reconfigure everything again and your users don't have to re-connect their FB accounts. Because of that, when there are updates to the database, if you revert and then upgrade again, those updates fail.. we can get you past those issues though.

Thanks,
Alex

The difficulty is that it's not easy to develop it both ways. Joomla, by default, will drop all tables when you uninstall. That, we've found, is rediculous as users like to uninstall just to install the next release. That causes all past connections and configuration data to be deleted. We prevent that, but it does cause issues with downgrading when we have database updates.

While we agree that we could make the situation better, the honest truth is that no one usually downgrades.. or at least if they have, it hasn't been a problem in the past. It's something we've added to our tracker to support better in the future, but again, some of the installation work is handled by Joomla.. so we have to work within their confines for some of it. For now, hopefully the below will get you going.

With that said, there's 3 options I can suggest that will get you going. In all cases below, replace xyz with your table prefix.
Update JFBConnect to signal that the 4.3.0 database definition is already installed:Look at the xyz_schemas table and find the value for the extension ID that JFBConnect is using (that ID can be found in the Manage Extensions area). If it's not 4.3.0, update it as well.

Roll back the DB changes manually
Delete the following Database tables:
xyz_opengraph_action
xyz_opengraph_action_object
xyz_opengraph_activity
xyz_opengraph_object

Delete the column "params" from xyz_jfbconnect_user_map.

Fresh install
Uninstall JFBConnect using the Joomla installer
Delete the following tables:
xyz_jfbconnect_config
xyz_jfbconnect_notification
xyz_jfbconnectrequest
xyz_jfbconnect_user_map
xyz_opengraph_action
xyz_opengraph_action_object
xyz_opengraph_activity
xyz_opengraph_object
Re-install JFBConnect v4.3 like it's new

Hope those get you going. Please, please make backups first before you try anything. We'll help however we can, but if you get too far off course, it makes it more difficult. Again, this is something we'll look into for future releases, but unfortunately, this is the best I can offer right now.

Thanks, and keep us posted how it goes,
Alex