script-fu - why it doesnt work? - Graphics

Hello!

I have something like that:

(let*

( (imgHSV (plug-in-decompose RUN-NONINTERACTIVE img drawable "HSV" FALSE))

(imgH (car imgHSV))

(imgS (+ imgHSV 1))

(imgV (+ imgHSV 2))

)

)

And it doesnt work. Why? I receive the message: Error during execution:
(script-ps-scale-image 2 4 3543 2362)
ERROR: wta(1st) to plus (see errobj)



Btw, is there any debuger or something similar? Is there any chance to
receive more detailled error descriptions? What means "see errobj"?



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