coverting old Crio code to new Crio?

[SuperBK]

You have to define a different target for workbench to connect to to download, run or debug your program. See the "Getting Started With C" guide, page 33. The difference is the kernal image file:

2. Select a Kernel Image file by making sure the "File" radio button is highlighted and clicking
Browse. The file is located in the WindRiver install directory in the WPILib top level directory called
“C:\WindRiver\WPILib\”. Select the file that matches your cRIO version, either cRIOFRC_vxWorks
(8-slot cRIO FRC) or cRIOFRCII_vxWorks (4-slot cRIO FRCII).