Very odd. I just created a brand new plugin project with Projucer 4.2.4 and opened it in Xcode 8. When I added the following line in my processor .h file, it complains::
ScopedPointer<AudioProcessorValueTreeState> vt; Use of undeclared identifier 'AudioProcessorValueTreeState'
If I remove that line, it compiles just fine. What’s going on? I just recently updated to 4.2.4, but everything else is compiling fine.