Include of non-modular header inside framework module

[prethushpj1]

Hi,

We are trying to build a dynamic framework using swift, which uses paymill as payment gateway.
We tried to integrate paymill ios sdk into our project using cocoapods, everything went fine.
But when I tried to import

import PayMillSDK/PMSDK.h

in the umbrella header file, the compiler is complaining about

"Include of non-modular header inside framework module 'FOO' "

How do I fix that ?

Please help.