(resolved:) Missing required module '_SubprocessCShims'

I currently get the following error when compiling for some projects:

missing required module '_SubprocessCShims'

There is also the following warning:

Building for debugging...
<module-includes>:1:9: note: in file included from <module-includes>:1:
1 | #import "process_shims.h"
  |         `- note: in file included from <module-includes>:1:
2 | #import "target_conditionals.h"
3 | 
warning: input verification failed

Following some instructions I found, I removed the DerivedData folder and the build folder, but the problem remains.

What can I do?

This problem came from an import statement in a target that did declare the according dependency. Strange error message in such a case...