LED1.write(1); save(); didn't save LED1 state after power off. why?

Gordon, I've uploaded:
function onInit() {
LED2.write(1);
}
save();
And Led2 doesn't light after power off - power On.
I used espruino ver1.43 compiled from github.
If I upload the code from webIDE not first time, I've got the message like

save();
=undefined
Erasing Flash.....
Programming 3810 Bytes.......
Checking...
There were 257 errors!
Even after reset(); save();
What the errors, and how can I manage this situation?