Hi Tom, sorry not native english speaker… TBXML Podspec is not working anymore, you changed the files 5 days before. should be like this i think: "source_files": [ "TBXML-Code/*.{h,m}", "TBXML-Headers/*.{h,m}" but is now: "source_files": "*.{h,m}“, And currently the files are not found in Xcode Projects. I hope this helps and you can fix the error soon. Thank you and have a nice weekend.