Undefined symbols for architecture arm64:
"___isOSVersionAtLeast", referenced from:
+[GtGbdUtil retriveNoticeRichInfo:] in GTSDK(GtGbdUtil.o)
___35+[GtGbdUtil retriveNoticeRichInfo:]_block_invoke in GTSDK(GtGbdUtil.o)
ld: symbol(s) not found for architecture arm64
clang-7: error: linker command failed with exit code 1 (use -v to see invocation)