error in generating species files.

Dear Sir,
I have generated pdb,ff,mcf and inp files. After that, i am using the following command:
python ./library_setup.py /home/Downloads/FlareGet/Cassandra_V1.0/Src/cassandra_gfortran.exe pentane.inp pentane.pdb
and i am getting the following messages:
*********Cassandra setup*********

Cassandra location: /home/Downloads/FlareGet/Cassandra_V1.0/Src/cassandra_gfortran.exe
Scanning input file...
Number of species found: 1
The MCF file number 1 is: pentane.mcf
Species 1 has 3 fragments
Molecules with rings found. These are:
Species 1 has 0 rings.


Creating input MCF generation file for species 1...
Done...
Running Cassandra to generate MCF files...
Traceback (most recent call last):
File "./library_setup.py", line 405, in <module>
subprocess.call([cassandra_location,'species'+str(i+1)+'_mcf_gen.inp'])
File "/usr/lib/python2.7/subprocess.py", line 522, in call
return Popen(*popenargs, **kwargs).wait()
File "/usr/lib/python2.7/subprocess.py", line 710, in __init__
errread, errwrite)
File "/usr/lib/python2.7/subprocess.py", line 1327, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory


how to solve this problem?

Regards,
Anand Bharti

PDB FILE:

COMPND UNNAMED
AUTHOR GENERATED BY OPEN BABEL 2.3.2
HETATM 1 C LIG 1 -3.495 0.602 -0.000 1.00 0.00 C CH3
HETATM 2 C LIG 1 -2.125 -0.043 0.000 1.00 0.00 C CH2
HETATM 3 O LIG 1 -1.144 0.947 -0.000 1.00 0.00 O
HETATM 4 C LIG 1 0.062 0.248 -0.000 1.00 0.00 C CH2
HETATM 5 C LIG 1 1.215 1.229 -0.000 1.00 0.00 C CH3
CONECT 1 2
CONECT 2 1 3
CONECT 3 2 4
CONECT 4 3 5
CONECT 5 4
MASTER 0 0 0 0 0 0 0 0 5 0 5 0
END


MCF FILE:

!**********************************************************************************
!Molecular connectivity file for DEE.pdb
!**********************************************************************************

# Atom_Info
5
1 C1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1 C 15 0.000 LJ 98.0 3.750
2 C2_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1 C 14 0.250 LJ 46.0 3.950
3 O3_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1 O 16 -0.500 LJ 55.0 2.800
4 C4_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1 C 14 0.250 LJ 46.0 3.950
5 C5_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1_s1 C 15 0.000 LJ 98.0 3.750

# Bond_Info
4
1 1 2 fixed 1.540
2 2 3 fixed 1.410
3 3 4 fixed 1.410
4 4 5 fixed 1.540

# Angle_Info
3
1 1 2 3 harmonic 112.0
2 2 3 4 harmonic 112.0
3 3 4 5 harmonic 112.0

# Dihedral_Info
2
1 1 2 3 4 OPLS 0.00000 6.03056 -1.35809 4.64087
2 2 3 4 5 OPLS 0.00000 6.03056 -1.35809 4.64087

# Fragment_Info
3
1 3 2 1 3
2 3 3 2 4
3 3 4 3 5

# Improper_Info
0

# Fragment_Connectivity
2
1 1 2
2 2 3


END

INP FILE:

! This is the input file for GEMC simulation of diethylether at 343.15 K

# Run_Name
DEE
!

---

# Sim_Type
GEMC
!

---

# Nbr_Species
1
!

---

# VDW_Style
LJ cut_tail 14.0
LJ cut_tail 14.0
!

---

# Rcutoff_Low
1.0
!

---

# Mixing_Rule
LB
!

---

# Charge_Style
coul Ewald 14.0 0.000001
coul Ewald 14.0 0.000001
!

---

# Intra_Scaling
0.0 0.0 0.0 1.0
0.0 0.0 0.0 1.0


!

---

# Molecule_Files
DEE.mcf 300

!

---

# Box_Info
2
CUBIC
35.2911 35.2911 35.2911

CUBIC
92.5596 92.5596 92.5596
!

---

# Temperature_Info
343.15 343.15
!

---

# Seed_Info
200 24000
!

---

# Move_Probability_Info

# Prob_Translation
0.30
0.4265
14.0

# Prob_Rotation
0.30
38.0
180.0

# Prob_Regrowth
0.30
1.0

# Prob_Volume
0.005
900.0
900.0

# Prob_Swap
0.095
insertion method
reservoir

# Done_Probability_Info
!

---

# Pressure_Info
1.0

# Bond_Prob_Cutoff
1.0E-10

# CBMC_Info
kappa_ins 12
kappa_rot 0
kappa_dih 12
rcut_cbmc 6.5 6.5

# Start_Type
make_config
200 100
!

---

# Run_Type
Production 5000 100
!

---

# Average_Info ( 0 == yes, 1 = No)
1

# Frequency_Info
freq_type none
Nthermofreq 300
Ncoordfreq 3000
MCsteps 3000
# Done_Frequency_Info
!

---

# Property_Info 1
Energy_Total
Nmols
Volume

# Property_Info 2
Energy_Total
Nmols
Volume
Pressure

# Fragment_Files
species1/frag1/frag1.dat 1
species1/frag2/frag2.dat 2
species1/frag3/frag3.dat 3

# Pair_Energy
TRUE

END

Thanks.

Dear Sir,
I have sorted out the problem. Actually, i was not properly calling the library_setup.py script.

Thanks.