Two modules working at the same time.

Hi, Gordon!
If I use

var lcd = require("HD44780").connect(A1,A2,A3,A4,A­5,A6);

It works well on My vldiscovery board, I can give out text and variables to LCD.
If use also

var sensor = require("DS18B20").connect(B1);

it gives me a lot of errors like

ERROR: Function not found! Skipping. at line 1 col 30
var lcd = require("HD44780").connect(A1,A2,A3,A4,A­5,A6);
                             ^
=undefined
ERROR: Using '.' operator on non-object at line 1 col 8
    lcd.clear();
       ^
=undefined
ERROR: Using '.' operator on non-object at line 1 col 8
    lcd.setCursor(0,0);
       ^
=undefined
ERROR: Using '.' operator on non-object at line 1 col 8
    lcd.print("Current data:");
       ^
=undefined
ERROR: Using '.' operator on non-object at line 1 col 8
    lcd.setCursor(4,1);
       ^
=undefined
ERROR: Using '.' operator on non-object at line 1 col 8
    lcd.print("B1 = ");

Is It the restriction of non-multitask, or someth. else? Thanks.