In my case (using XCode 10.0) nothing worked but this:
File > Project Settings… > Shared Project Settings: > Build System
–> Selected “Legacy Build System” instead of the default “New Build System (Default)”.
In my case (using XCode 10.0) nothing worked but this:
File > Project Settings… > Shared Project Settings: > Build System
–> Selected “Legacy Build System” instead of the default “New Build System (Default)”.