emacs smarter-compile
===

i install smarter compile package from marmalade-repo,i just bind the key

    (global-set-key (kbd "C-c C-c") 'smarter-compile)
however,when i use it,the first time it will compile the file,but show this:

    smart-compile-expand-compile-command: Wrong type argument: stringp, t
the second time i use C-c C-c to compile the same buffer,the smarter-compile 
doesn't work(It doesn't show the right compile command,just always show make -k).

Anyone have idea about this problem