Here's the compilation error
1>------ Build started: Project: openframeworksLib, Configuration: Debug Win32 ------
1> ofSerial.cpp
1>C:\Dev\of_v0.8.4_vs_release\libs\openFrameworks\types\ofTypes.h(188): error C2061: syntax error: identifier '_Dynamic_tag'
1> C:\Dev\of_v0.8.4_vs_release\libs\openFrameworks\types\ofTypes.h(203): note: see reference to class template instantiation 'ofPtr<T>' being compiled
1>C:\Dev\of_v0.8.4_vs_release\libs\openFrameworks\types\ofTypes.h(188): error C2535: 'ofPtr<T>::ofPtr(const ofPtr<Tp1> &)': member function already defined or declared
1> C:\Dev\of_v0.8.4_vs_release\libs\openFrameworks\types\ofTypes.h(166): note: see declaration of 'ofPtr<T>::ofPtr'
1> ofArduino.cpp
1>C:\Dev\of_v0.8.4_vs_release\libs\openFrameworks\types\ofTypes.h(188): error C2061: syntax error: identifier '_Dynamic_tag'
1> C:\Dev\of_v0.8.4_vs_release\libs\openFrameworks\types\ofTypes.h(203): note: see reference to class template instantiation 'ofPtr<T>' being compiled
1>C:\Dev\of_v0.8.4_vs_release\libs\openFrameworks\types\ofTypes.h(188): error C2535: 'ofPtr<T>::ofPtr(const ofPtr<Tp1> &)': member function already defined or declared
1> C:\Dev\of_v0.8.4_vs_release\libs\openFrameworks\types\ofTypes.h(166): note: see declaration of 'ofPtr<T>::ofPtr'
1> ofVideoPlayer.cpp
1>c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\ofTypes.h(188): error C2061: syntax error: identifier '_Dynamic_tag'
1> c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\ofTypes.h(203): note: see reference to class template instantiation 'ofPtr<T>' being compiled
1>c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\ofTypes.h(188): error C2535: 'ofPtr<T>::ofPtr(const ofPtr<Tp1> &)': member function already defined or declared
1> c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\ofTypes.h(166): note: see declaration of 'ofPtr<T>::ofPtr'
1>c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\ofTypes.h(188): error C2535: 'ofPtr<ofBaseVideoPlayer>::ofPtr(const ofPtr<Tp1> &)': member function already defined or declared
1> c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\ofTypes.h(166): note: see declaration of 'ofPtr<ofBaseVideoPlayer>::ofPtr'
1>c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\ofTypes.h(188): fatal error C1903: unable to recover from previous error(s); stopping compilation
1> INTERNAL COMPILER ERROR in 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\CL.exe'
1> Please choose the Technical Support command on the Visual C++
1> Help menu, or open the Technical Support help file for more information
2>------ Build started: Project: emptyExample, Configuration: Debug Win32 ------
2> ofApp.cpp
2>c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\oftypes.h(188): error C2061: syntax error: identifier '_Dynamic_tag'
2> c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\oftypes.h(203): note: see reference to class template instantiation 'ofPtr<T>' being compiled
2>c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\oftypes.h(188): error C2535: 'ofPtr<T>::ofPtr(const ofPtr<Tp1> &)': member function already defined or declared
2> c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\oftypes.h(166): note: see declaration of 'ofPtr<T>::ofPtr'
2>c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\oftypes.h(188): error C2535: 'ofPtr<ofMesh>::ofPtr(const ofPtr<Tp1> &)': member function already defined or declared
2> c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\oftypes.h(166): note: see declaration of 'ofPtr<ofMesh>::ofPtr'
2>c:\dev\of_v0.8.4_vs_release\libs\openframeworks\types\oftypes.h(188): fatal error C1903: unable to recover from previous error(s); stopping compilation
2> INTERNAL COMPILER ERROR in 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\CL.exe'
2> Please choose the Technical Support command on the Visual C++
2> Help menu, or open the Technical Support help file for more information
========== Build: 0 succeeded, 2 failed, 0 up-to-date, 0 skipped ==========Most of the topics I found on this forum mention VS 2012, so I'm not really sure if this is a compatibility issue with 2015?
