ofSound player error:AddInstanceForFactory

I’m tring to make a audio player.
But I cannot figure out what the error is.
Here is the error message:

AddInstanceForFactory: No factory registered for id <CFUUID 0x600000b423a0> F8BB1C28-BAE8-11D6-9C31-00039315CD46

what this error means??

can you add more info please ?
OF version, IDE, platform, ect
Otherwise it is quite difficult to solve.
Please paste your source code here, select it all and press the </> button.

Please connect over Trish@cisinlabs.com

what does this mean?