I resolve that. the reason of the error is i use a Chinese version of windows. switch the language to english will build ok

reactos\base\applications\winhlp32\Bg.rc(33) : error RC2125 : expected ID value for menu item I open the file and find the error ocurred by a string that not end with '"' And i open the file use hex-tools that could find the '"' why the rc.exe can't found the '"' at the end of string? how can i reso...