Stéphane Lejoly wrote:
[]
> Can't find required tool
> Latex-Asy-Latex does not have the executable bit set
> 
> What's wrong ?
A good guess would be that the error message is correct and you did not 
set the executable bit on your Latex-Asy-Latex file.
Just set it ("chmod +x Latex-Asy-Latex").
-- 
Martin