Liggghts 3.3.1 version

perhaps you need to update the symbolic link to the new liggghts version?

Hi, I am having the same issue as stated by sitinorfarahin. When I try to run any of the examples using the liggghts < in.example, I get the error stated in the subject line. I have installed liggghts using the most updated file located on the github website which is the 3.3.1 version. However, when I enter "liggghts" command in the terminal the output states that I have the 2.3.8 version. Any input would be highly appreciated.

Did you installed a previous liggghts version by package installer (apt-get or yum ?) or did you set an symlink to lmp_fedora in /usr/bin ?
You can check this with

whereis liggghts
ls -l {^^^^ output of whereis}

should give something like this:

dem@pc-dem2-ilm ~]$ whereis lmp3
lmp3: /usr/bin/lmp3
[dem@pc-dem2-ilm ~]$ ls -la /usr/bin/lmp3
lrwxrwxrwx. 1 root root 49 24. Feb 14:06 /usr/bin/lmp3 -> /home/dem/LIGGGHTS/LIGGGHTS-PUBLIC/src/lmp_fedora
[dem@pc-dem2-ilm ~]$

now you need to go to /usr/bin an remove old symlink and update to new liggghts3-executable (normaly $HOME/LIGGGHTS/LIGGGHTS-PUBLIC/src/lmp_fedora, depending where you cloned the git archive and which makefile you used)

cd /usr/bin
sudo rm liggghts
sudo ln -s /home/{USERNAME}/LIGGGHTS/LIGGGHTS-PUBLIC/src/lmp_fedora liggghts

to create a new symlink.
Now when you type liggghts in terminal you should get 3.3.1

Good Luck,
Christian.