sample.grammar has 9 rules

sample.voca    has 5 categories and 30 words

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Warning: dfa_minimize not found in the same place as mkdfa.pl

Warning: no minimization performed

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no .dfa or .dict file generated..

I got this error and i know that mkdfa.pl and dfa_minimize are in the same directory i checked that they are in usr/local/bin and i added the path to the .bash_profile. What can be the problem?