Xcode 10, could not decode input file using specific encoding

I am working on an iOS app. It is working fine in Xcode 9.4.1, but when I build it in Xcode 10 it gives me following error:

I tried the solution given in the following post by changing the encoding, but it didn't work. I tried it by both Reinterpret and Convert

still the same error:

It's working fine on Xcode 9.4.1

Any help provided will be appriciated. Thanks!

from Xcode 10, could not decode input file using specific encoding