Discrepancy between activities and periods

[Shane]

I have a 6 day timetable with 7 lessons per day, giving 42 lessons. Student statistics gives 42 activities, but 43 lessons, and won't generate my timetable. How can I sort this out?

[Liviu Lalescu]

If there are 43 lessons (are these hours?) then one of the activities has duration 2. Please make this duration 1.

Please let me know.

[Shane]

Thanks. all sorted out..