I am installaing wallee payment module for magento 2.2 directly (not through composer).
I have downlaed the package from below link
While upgrading setup it show me below error.
Class Wallee\Sdk\Model\PaymentMethodConfiguration does not exist
Class Wallee\Payment\Api\PaymentMethodConfigurationManagementInterface\Proxy generation error: The requested class did not generate properly, because th
e 'generated' directory permission is read-only. If --- after running the 'bin/magento setup:di:compile' CLI command when the 'generated' directory perm
ission is set to write --- the requested class did not generate properly, then you must add the generated class object to the signature of the related c
onstruct method, only.
Can you please instruct how to resolve this. See attached screenshot