Hi Jennie Zhang,
The above pictures are same even in my case. I created a new project.
And then added a new folder MSCAN_DRIVER and included that path in Settings->Directories->MSCAN_DRIVER.
This automatically added the paths in "Paths and Symbols->GNUC->".
But when I build the project, it shows msCANdrv.h file is not found. But it is found in "MSCAN_DRIVER/CAN_inc".
I have attached the screen shot here for reference..



Let me know if I am missing something.
Thanks in advance