I have created a Payment Gateway plugin for Magento. The PSP is Payrexx. This Payment Module extension is created on Magento 2. Within the modules, we have used the external third party PHP library. For Manual installation, we are running the following command
php bin/magento module:enable Payrexx_PaymentGateway php bin/magento setup:upgrade
But the issue is:
" php bin/magento setup:di:compile " While running this command we are getting fatal error for class not found, though this command is absolutely necessary to run our modules.