Dear Liviu Lalescu,
Here is my input file. Fet can not generate time table.
When I deactivated these constraints:
+ Teachers not available time
OR
+ Activities have preferred time slots.
the time table was generated successfully.
Could you take a look at it and suggest me why this input file doesn't work?
Thank you so much!
I had only a quick look. It might be that the file is too constrained. You might need to relax some constraints.