Move (or Copy) the project files from C:\Texas Instruments\BLE-CC254x-1.2\Projects\ble to C:\Texas Instruments\BLE-CC254x-1.3\Projects\ble.
Move (or Copy) the necessary profiles from C:\Texas Instruments\BLE-CC254x-1.3\Projects\ble\Profiles to C:\Texas Instruments\BLE-CC254x- 1.3\Projects\ble\Profiles.
Open the project and in the LIB group of the project:
Remove all files.
Add CC254x_BLE.lib (or GAP role specific, for a more memory optimized library).
Add CC254x_BLE_HCI_TL_None.lib for SoC solutions.
Add NPI group (Right click in the workspace > "Add" > "Add Group..."). Add files npi.h, npi.c (npi_uart.c and npi_spi.c as well if needed).
Go to "Project" > "Options" > "General Options" > "Target" > "Number of virtual registers": Set number to 16.
Go to "Project" > "Options" > "C/C++ Compiler" > "Additional include directories": Add the line $PROJ_DIR$\..\..\common\npi\npi_np