Issues with Installing Plugin after 3.90 Upgrade

We have just updated our development site to 3.9 and have come across an issue. We followed the upgrade instructions to remove the shippingbyweight plugins as per below


Version specific steps:
7. Combine "Fixed Rate Shipping" and "Shipping by weight" plugins into single one. Upgrade instructions: do not forget to manually delete "/Plugins/Shipping.FixedRateShipping"and "/Plugins/Shipping.ByWeight"directories (they are not used anymore) and replace the plugin «Shipping.Fixed Rate» or «Shipping.ByWeight» by the plugin «Shipping.FixedOrByWeight» in the App_Data/InstalledPlugins.txt file.


and tried to install the new plugin "Manual (Fixed or By Weight)" we get the following error

There is already an object named 'ShippingByWeight' in the database.


We are also getting the same problem with the new GoogleFeed plugin.


Any help appreciated.

Hi,

Did you insert "Shipping.FixedOrByWeigh" in the InstalledPlugins.txt as it is explained in the upgrade instructions?

Regards,
Stoyan

All sorted. We Restarted the application and all is fine.

Note that you should not have to " install the new plugin".  If you modify the InstalledPlugins.txt file, then you can just "reload list of plugins".

Also, if you were previously using Shipping.ByWeight and have adjusted it to Shipping.FixedOrByWeight, you should go to the configuration for the Shipping.FixedOrByWeight plugin and select "By Weight" (button in upper left of page).  Alternately, you can go to All Settings:  fixedorbyweightsettings.shippingbyweightenabled  - defaults to False, meaning use Fixed Rate, so change to True.