Resolved Virtuemart Product Export: Cannot declare class vmPlugin

Hello,
What I read from VirtueMart forum is that these errors in core plugins is possible when your VirtueMart is not update to 3.6 version. But in your case your VirtueMart is 3.6.10 10211 version. It is possible that your VirtueMart update did not go well as both the core plugins are saying the same missing method addVarsToPushCore(). You can try updating your VirtueMart. If that does not help then you can write in VirtueMart forum about this error. The reason you see these errors in export is because RO CSVI uses few core VirtueMart files in import and export.

I'm able to get a successful run if I disable the following plugins, each of which produces a different error if enabled. These plugins used to all play nicely.

• System - RuposTel One Page Checkout Master Plugin (OPC) (Error 500 Cannot declare class vmPlugin)
  
• VM Payment - Standard (500 Call to undefined method plgVmPaymentStandard::addVarsToPushCore() )
  
• VM Shipment - By weight, ZIP and countries (500 Call to undefined method plgVmShipmentWeight_countries::addVarsToPushCore() )
  

I'll reach out to the developer of the third-party plugin for info but I'm curious as to why the core VM shipment and payment plugins are also causing issues. VM AIO is version 3.6.10

Hello,

This should be caused by some third party plugin for VM that runs when RO CSVI tries to export when it should not be running. You can check if your export runs by disabling any VM related plugins. Unfortunately the error doesn't tell us which plugin so it is a matter of trial and error. Perhaps there is a difference between your new and old site regarding VM plugins that can give you a clue.