Why linker link static libraries with errors? iOS

Question

I have a problem with linking my mixed language framework to a project.

1) I create a framework with Swift and Objective-C classes.

2) The main logic was stored in the

Answer 1

Apparently for pure objective-c projects you will need to add this $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) to the library search paths of your target. This worked for me when I was including a library written in swift to a project in objective-c