Thanks jsj795! I can now connec to my calculator

But when I try to delete an application I get this error:
Msg: failed to open the USB device.
Cause: Check that the USB cable is plugged in and that the calculator is turned ON! Also, check libusb and usbfs for valid permissions.
System: (1660976624) The handle is invalid.
I know for sure that the USB cable is plugged in and that the calculator is turned on. But I don't get that libusb and usbfs part
