On my Ubuntu 20.04 I try to open "qdec" of "freesurfer" and get the following error:
Tk_Init error: Can't find a usable tk.tcl in the following directories: /home/username/tcl8.4.6/tk8.4 /home/username/freesurfer/freesurfer/lib/tk8.4 /home/username/freesurfer/lib/tk8.4 /home/username/freesurfer/freesurfer/library /home/username/freesurfer/library /home/username/freesurfer/tk8.4.6/library /home/username/tk8.4.6/library
This probably means that tk wasn't installed properly.the rest of freesurfer works (e.g. "freeview") and I am not able to find out how to fix this problem. I think I should somehow install tk8.4.6 in one of the directories it is searching for it or link the directory to an installed version, but I am not sure how to do it. Could someone help me?
edit: freesurfer is a neuroimaging toolbox and qdec is a specific programme of this toolbox. I attached the wiki of the toolbox and the page where I found out about the qdec gui.
freesurfer wiki:
qdec introduction:
I installed freesurfer version freesurfer-linux-centos6_x86_64-7.2.0-20210720-aa8f76b
31 Answer
After inspecting my folders I realized, that freesurfer was looking in the lib path but not in lib/tktools so I copied everything from the lib/tktools folder into the lib folder, as I did not know how to change the folders it was searching. Now I can run the qdec gui.
