About bootloader.tool

[adoph]

I download ESP8266 Arduino IDE for Windows version.
When I burn bootloader to ESP 8266 and always get the error message:

Arduino: 1.6.1 (Windows 7), Board: "Generic ESP8266 board"
Error while burning bootloader: missing 'bootloader.tool' configuration parameter
This report would have more information with
"Show verbose output during compilation"
enabled in File > Preferences.

I tried run the IDE on Windows 8.1 and Windows 7 sp1 and get the same error message.
Do you know how to solve this problem?
Thank you!

[igrr]

No need to burn the bootloader, it is already in ESP's ROM.
Was discussed is a similar issue: #24.