I had this working on OS X 10.9.
I've imported a library framework (aubio) to the 10.10 SDK folder: / Applications ▸ Xcode.app ▸ Contents ▸ Developer ▸ Platforms ▸ MacOSX.platform ▸ Developer ▸ SDKs ▸ MacOSX10.10.sdk ▸ System ▸ Library ▸ Frameworks
It shows up in Xcode. But when I go to compile the project it tells me it can't find the header.
So I have to import the framework, manually each time the project gets resaved (which can sometimes be quite often when using the Introjucer). This then shows two copies of the framework. I am then able to use the import statement and build the project.
How can I get the framework to be initially recognised by Xcode so that I can compile the project without re-importing it each time?