Hi Buddy, Thanks for your reply😊 Yea sure got it. This is my first post, will make it better in future. How it happens means Actually I updated from Xcode 15 to Xcode 15.2, after that.. I try to build my app I got this error, "ld: Unkown option: -no_warn_duplicates_libraries" In Xcode 15 no issue, can build the app successfully. But the error appears when comes to Xcode 15.2 I am not using the linker flag: -no_warn_duplicates_libraries But I have -ld64(, which I added from Xcode 15) and other linker flags By latest when I remove my existing linker flags and just added $(inherited) -Xlinker -no_warn_duplicates_libraries, leads to build getting success. But app get crash when install in a simulator. At the same time I am not able to append my existing linker flags with the solution.