Juce Demo Plugin Audio Unit makes no sound


Sorry for the noobish question but I build the Juce Demo Plugin project with Xcode 6.3.2 and the VST works perfectly but the Audio Unit makes no sound when I press the keys.

I placed the 'CoreAudio' folder from Feb 2012 in 'Xcode/Contents/Developer/Extras' folder.

I'm guessing there is something wrong with using such an old resource with the new Xcode?

I looked on Apple's Developer site and downloaded 'audiotools_for_xcode_6.1' but it just has some 'AU Lab' and 'HALLab' so I don't think that's what I need.

Can anybody help me?



https://developer.apple.com/library/mac/samplecode/CoreAudioUtilityClasses/Introduction/Intro.html  solves the problem

...and here is a working link: