First: Please make sure that rest of the project are building properly (lets say: USBBULKLOOPAUTO). If again you are getting the errors, you can try to re-installing trying the method on AN75705. Also, please make sure that you are using SDK 1.3.3
If rest of the firmware are builing fine (only AN75779 is not building fine), then please try the attached source. There might be some references to the libraries missing. I am attaching the source which should fine.
UVC_AN75779_forum.zip 641.7 K
I've followed the steps on the page 13/42 point 7 of the document: AN75705_Getting_Started_with_EZ-USB_FX3.pdf but I had the same problem. So I've deccided to download the examples one by one from the http://www.cypress.com/documentation/code-examples/usb-superspeed-code-examples website and now compile perfectly and I don't have any error to open the source files.
Thank you for your sooner replay.