cannot generate timetable

[lavert]

Hi, my timetable have 660 activities it run and stop at record 448, for long time eg,6 hour,  I don't have free period,, please help
no extra setting,, it I just straight forward allocation,, no starting time,, but fryday period differ with mon-thurdsay
please help

[Volker Dirr]

Hi, impossible to help without a file and/or much more information.

There are different tricks to find bugs:

1. Check the last place activity and think yourself why it is impossible to place.

2. Increase all weights up to 100%. In many cases it is much easier to find the bug then. (You can also try to reduce all to 0%, but this information doesn't always help much)

3. Increase the number of days or hours. Check the generated timetable and think yourself why it isn't possible wit less days or hours.

[Volker Dirr]

ok. i got your sample file and i can see the problem.

you problem is that you didn't know that the constraint "min n days between activities" can place max 2 activities per day if you check the "consecutive" flag. but your timetable is not solvable with that limitation.

so two solutions:
1) (this is a fast solution, but in my opinion not the best one):
modify the consecutive flag to "no".
you can do it very fast if you go to:
fet -> time constraints -> activities -> min days between a set of activities -> modify multible at once.
(in fact you only need to do that with "difficult" activities. i recommend to to that at least with all activities that have (much) more parts then you have days per week.)


2) (this is in my opinion a better solution:)
you should never split an activity into (much) more parts then your week have days. so decrease the number of parts, but don't forget to increase the duration of the parts, so the total duration still stay the same.