problems when runing i-tasser

I just installed itasser on my mac and downloaded all the database into my $libdir according to the instruction of readme.txt
but, when I was running the program(in the terminal application of mac) something like"cannot execute binary file" occured. I hope someone could tell me why and what to do next. thanks.

cvmw803214ddnm:I-TASSER mcho$ ./I-TASSERmod/runI-TASSER.pl -libdir /Users/mcho/I-TASSER -seqname seq.fasta -datadir /Users/mcho/I-TASSER -usrname mcho
Your setting is:
-libdir =/Users/mcho/I-TASSER
-seqname =seq.fasta
-datadir =/Users/mcho/I-TASSER
-usrname =mcho
-runstyle =serial
-homoflag =real
-idcut =1
-ntemp =20
-nmodel =5
1. make seq.txt and rmsinp
2.1 run Psi-blast
sh: /Users/mcho/I-TASSER/blast/bin/blastpgp: cannot execute binary file
cp: psitmp.chk: No such file or directory
cp: pssm.txt: No such file or directory
2.2 run psipred
cp: /Users/mcho/I-TASSER/mtx is a directory (not copied).
sh: /Users/mcho/I-TASSER/bin/psipred/bin/psipred: cannot execute binary file
sh: /Users/mcho/I-TASSER/bin/psipred/bin/psipass2: cannot execute binary file
cp: protein.ss2: No such file or directory
2.3 run solve
cp: /Users/mcho/I-TASSER/pssm.txt: No such file or directory
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file
2.3 run solve
cp: /Users/mcho/I-TASSER/pssm.txt: No such file or directory
./solve: ./solve: cannot execute binary file
./solve: ./solve: cannot execute binary file