unable to generate schedule

[rolahitani]

Hello,
i was unable to generate my schedule even though i don't have that much activities, the generation keeps on running, and i am sure there are no conflicts at all
i removed an English session from an subactivity for all the sections i have(instead of having duration 3, i put it 2) it worked,
but  the point is that i don't want to remove anything
you can fins attached my file

Thank you
Rola

[Volker Dirr]

You current data is impossible.

You need at least 3 free teachers per timeslot.
Don't forget that you have many activities with duration 2 and 3. So if you disallow a timeslot for a teacher, then in fact you disallow him 2 or 3 slots if he or his students have only activities with duration 2 or 3. That's why you disallowed much more timeslots then it look like if you just have a quick view on your dataset.

So solutions are this:
a) remove some "not available" timeslots (that work. i checked it.)

or

b) (i didn't tried, but it should also work if you do it with the correct activities). Change some activities from duration 2 into duration 1+1. So you don't have the " fact you disallow him 2 or 3 slots if he have only activities with duration 2 or 3." problem.

or

c) add one more hour per day

or

d) similar to b): change some activities with duration 3 into 2+1. Or activities with duration 3+3 into 2+2+2. That might reduce the b) problem. (But on the other hand activities with duration 3 might be needed if you need to keep not available slots in the first and last hour. So think carefully.)