Xcode v12.5.1 won't install IGListKit, says no such module, tried via coco pods and SPM

[javyduty]

New issue checklist

• [x] I have reviewed the README and documentation
• [x] I have searched existing issues and this is not a duplicate
• [ ] I have attempted to reproduce the issue and include an example project.

General information

• IGListKit version: 4.0
• iOS version(s): 14.4
• CocoaPods/Carthage version: 1.10.2
• Xcode version: 12.5.1
• Devices/Simulators affected: all
• Reproducible in the demo project? (Yes/No): no
• Related issues:

Debug information

# Please include debug logs using the following lldb command:
ld: warning: directory not found for option '-L/filepath/GListDiffKit'
ld: warning: directory not found for option '-L/filepath//Debug-iphonesimulator/IGListKit'
ld: library not found for -lIGListDiffKit
clang: error: linker command failed with exit code 1 (use -v to see invocation)