When we import file without --format pamater we got an error :
In ImporterRegistry.php line 13:
Argument 2 passed to FriendsOfSylius\SyliusImportExportPlugin\Importer\ImporterRegistry::buildServiceName() m
ust be of the type string, null given, called in /home/synbshop/public_html/sylius-toupargel/src/vendor/frien
dsofsylius/sylius-import-export-plugin/src/Command/ImportDataCommand.php on line 61
When we import file without --format pamater we got an error :
We can try to guess the format from the file like say here https://github.com/FriendsOfSylius/SyliusImportExportPlugin/blob/master/src/Command/ImportDataCommand.php#L39