NRF24L01 module trouble

Hi all!
trying to connect NRF24L01 to my F3Discovery i use the sample

SPI1.setup({sck:A5, miso:A6, mosi:A7,baud:100000});
var nrf = require("NRF24L01P").connect( SPI1, B0, B1 );
function onInit() {
  nrf.init([0,0,0,0,2], [0,0,0,0,1]);
}
onInit();
setInterval(function() {
  nrf.masterHandler();
}, 50

then try nrf.getAddr(nrf.C.RX_ADDR_P1) to check SPI communication and get:

>nrf.getAddr(nrf.C.RX_ADDR_P1)
ERROR: Using '.' operator on undefined at line 1 col 17
nrf.getAddr(nrf.C.RX_ADDR_P1)
                 ^

why C is undefined and what wrong with It?
IDE v 0.44.0 espruino 1v63
I tryed "No minification" and "Simple Optimizations" in
communication Settings.