Error: Xtento/.../Test/SerializedToJsonDataConverter does not exist
Potential error messages:
- Error Xtento\OrderExport\Test\SerializedToJsonDataConverter does not exist
- Error Xtento\ProductExport\Test\SerializedToJsonDataConverter does not exist
- Error Xtento\OrderImport\Test\SerializedToJsonDataConverter does not exist
- Error Xtento\StockImport\Test\SerializedToJsonDataConverter does not exist
- Error Xtento\TrackingImport\Test\SerializedToJsonDataConverter does not exist
Step 1: Reinstall module, verify all files are there. Make sure the "Test" folder located in the module directory hasn't been deleted.
Step 2: Still an issue? It's your deployment process probably that removes the "Test" folder, thinking it's not required. We are aware of "magento2-deployer-plus" doing this for example.
The "Test" folder is required by the extension for reasons of compatibility with Magento Marketplace unfortunately.