Summary

I'm trying to run the commands

ft = EulerNumber()
ft.inputs.in_file = "path_to_my_file"
ft.run()

Actual behavior

I get an error: ERROR: Invalid FreeSurfer license key found in license file /home/ebarsotti/LSS/MRRCdata/Programs/FreeSurfer5.3/freesurfer/license.txt

I have a license and a license.txt file located in the FreeSurfer home directory, so I'm not really sure what is happening. Any ideas?