title: Xcode 10 Lexical or preprocessor issue .h file not found
body: <p>When using the new Xcode 10 build system under File -> Workspace Settings ->  New Build System (Default) my app will not compile because it cannot find a .h file for an embedded .framework that I am using in my project. Once I set the build system to use the legacy build system the project builds perfectly fine. How can I use the new build system and fix this issue where it cannot find the .framework .h file? The project builds perfectly fine in Xcode 9.4.1 without issues or when using the legacy build system on Xcode 10.</p>