Undefined symbol: _sAICountedObject

If you're basing your code of the sample code, you can see that in samplecode\common\Suites.cpp it defines the actual suite pointers like so:

extern "C" {
	SPAccessSuite *sSPAccess;
	SPPluginsSuite *sSPPlugins;
	AINotifierSuite *sAINotifier;
	AIAppContextSuite *sAIAppContext;
	AIUserSuite *sAIUser;
	AIFilePathSuite *sAIFilePath;
	AIFoldersSuite *sAIFolders;
}

If you're following the pattern from the sample code, the suite in the header is just a forward declaration of the suite pointer, you need to actually define the actual suite pointer like above.