Resolve LLVM error cannot specify-o when generating multi
Xcode 9 uses the LLVM obfuscator to prompt an error:
Clang: error: cannot specify-o when generating multiple output files
By comparing the compilation parameters, it is found that Xcode 9 has an extra compilation parameter-index-store-path. The solution is to search index store in Build Settings and set it to No, as shown in the following figure:
Original address: https://www.exchen.net/ solution-llvm- error-cannot-specify-o-when-generating-multiple-output-files.html