Magento 2.2.2 - setup:di:compile - InventorySourceDeductionApi

[robertbits]

I am trying to install Facebook_Business_Extension to setup Facebook ConversionAPI. My problem is that when I run php bin/magento setup:di:compile, I am getting this error:

[ReflectionException]
Class Magento\InventorySourceDeductionApi\Model\GetSourceItemBySourceCodeAndSku does not exist

Does someone know about this problem, since the research that I have done for this error was related to Magento Multi-Source Inventory (MSI), which if I am not mistaken Magento 2.2 does not use it?

These are the details of my setup:

• PHP version: 7.1
• Magento 2.2.2 Open Source
• Composer version: 2.0.6

[shraddhash9dd4]

kindly check if you have this module enabled 

php bin/magento module:status Magento_InventorySourceDeductionApi

this module is a part of MSI

If you are not using MSI then try disabling all the modules related listed here

Kindly Accept as a Solution if this works for you and give Kudos  

[bayerruffgd439]

I tried disabling the modules that exist as part of the MSI, but none of them exist also.

Last time I worked on the site and ran setup:di:compile everything ran okay, all I can think is that composer has maybe added a denpendany that does not exis, but I don't think that is the case also!

Possibly after I started to install Facebook Pixel.

Subaru Net

[meher jeet_sachan]

Hello @robertbits,

Magento 2.2.2 doesn't have MSI, you can cross-check composer.json for it.
But I think the Facebook_Business_Extension extension uses MSI classes in its code. Hence the error is occurring.

Thanks 

[robertbits]

@meher jeet_sachan Yeh, I think that that's the main problem with the Facebook business suite, which is making my life miserable to set up Facebook capi on Magento 2.2.2