When using a Kit-050LP you do not need a bootloader since on the board is an interface for debugging and programming integrated to.
When you want to use a bootloader you need two projects: the BootLoader project that defines what kind of interface the bootloading process will use (besides a couple of other properties)
And the BootLoadable which will be run. This project strongly depends on the first and the needed connections (files) are specified in the BootLoadable component. So the next step for you to take should be to find the BootLoader project and change the device, too.
Thank you! That is good info. I very quickly found that there was essentially a project within the project called I2C_Bootloader with a separate .cywrk file. I opened that up and set the target device and rebuilt. Now, I can rebuild the master (for lack of a better word) project without errors and download it.
I understand what you are saying though that in this case (using the dev board) I shouldn't even need the bootloader although I'm thinking extricating it might be a project by itself ... maybe not.
Anyway, thanks again for your help.
Fine to have helped you. You are always welcome.
Additional ref material that may be helpful -
http://www.cypress.com/?rID=50230 AN68272 UART BL
http://www.cypress.com/?rID=41002 AN60317 I2C BL
http://www.cypress.com/?rID=57561 AN73503 USB HID BL with GUI Host
http://www.cypress.com/?rID=56014 PSoC® 3, PSoC 4, and PSoC 5LP Introduction To Bootloaders