I am using the Xcode version 11.1 targeting ios 12.0

I have just installed this framework pretending to make some automatization process with this framework on the native ios web browser. But I find this error at the beginning and I have no idea why. Can anyone help me to continue?
I am using the Xcode version 11.1 targeting ios 12.0

I have just installed this framework pretending to make some automatization process with this framework on the native ios web browser. But I find this error at the beginning and I have no idea why. Can anyone help me to continue?