Swift custom framework - Merge-module command failed with exit code 1

Question

As we've created our own Swift based framework, build it and deploy it into the master project, the following error occurs:

By importing the framework we are however able to use all of the publicly declared methods and classes. But, when building the project, the error as shown at the screenshot appears.

Any hind what the problem might be?

Answer 1

For me, I just used the Clean Build Folder command (command + shift + k), and it worked!