ERROR: openscenegraph/3.6.5: Error in package_info() method, line 536
	if (self.settings.os == "Macos" and Version(self.settings.os.version.value) >= "10.8") or (self.settings.os == "iOS" and Version(self.settings.os.version.value) >= "6.0"):
	AttributeError: 'NoneType' object has no attribute 'strip'