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

I get the following error:
"There is already an object named 'ShippingByWeight' in the database. "
when attempting to install the "Manual (Fixed or By Weight)" plugin for NC4.00
I deleted it, then put it back in, but the error persists.


my plugins json file

[
  "Widgets.NivoSlider",
  "Payments.PurchaseOrder",
  "DiscountRequirement.MustBeAssignedToCustomerRole"
]

Anyone know where to find the offending plugin and delete it manually?

This is Version 4.00 of NopCommerce. I had upgraded from Version 3.90, so maybe there's a problem with the upgrade script.
Since there's no plugin by the name ShippingByWeight anywhere, I presume it's no longer a plugin, but scoured the Admin pages and can't find anyway to configure this (if it, indeed, is built-in).

SOLUTION: (very simple)
I added "Shipping.FixedOrByWeight" to the plugins json file. Restarted and there it was.

Hi, I have same problem click "delete" in plugin list... and now don't have idea how can i find this plugin and install it again... Manual (Fixed by Weight)... On nopcommerce page I found only Fixed by total?

Can someobdy help?

There is no ' "delete" in plugin list '.  Did you mean that you deleted the folder?

New York wrote:


Hmm... in Nop 4.0 when i go to plugins > Local plugins. I have Options: Install or Delete (or if something is installed i can uninstall). I click delete because thinking maybe something wrong is installed, and i download new one and install again... but can't find anywhere this plugin :(

Sorry, I forgot they added that in 4.00.
Unfortunately, since the "Fixed or By Weight" plugin comes "out of the box", it's not in the Marketplace.  You will need to manually download the full "no source" version of NopCommerce (or use the one you already downloaded when you did your initial install), and then copy / FTP the \Plugins\Shipping.FixedOrByWeight folder into your site's \Plugins folder.  Then, "Reload list of plugins".

Great and thx! :)