[Mne_analysis] Error Message mne_setup_source_space

[P. Hashemzadeh]

Dear Matti
I get the following error message below.   It says on line 311. There
is an error, I was wondering, if you would be kind enough to help me.
best regards parham hashemzadeh

parham at parham:~/Desktop/MNE-2.7.0-3106-Linux-x86_64/bin$
./mne_setup_source_space --subject sample --spacing 5

Setting up the source space with the following parameters:

SUBJECTS_DIR = /home/parham/Desktop/MNE-2.7.0-3106-Linux-x86_64/subjects
Subject      = sample
Surface      = white
Grid spacing = 5 mm

>>> 1. Creating the source space file /home/parham/Desktop/MNE-2.7.0-3106-Linux-x86_64/subjects/sample/bem/sample-5-src.fif...
./mne_setup_source_space: 311: ./mne_setup_source_space:
mne_make_source_space: not found
Source space creation failed
Temporary files removed.

parham at parham:~/Desktop/MNE-2.7.0-3106-Linux-x86_64/bin$