I am trying to make a reinforced concrete project in idecad 7 for the first time. Even though I increased the slab thicknesses, I still get the same error: 'slab thickness is insufficient'. I wonder how can I solve this problem. I would be very grateful if you could help me urgently as I have a final homework assignment. Thank you in advance. Project Link : http://s3.dosya.tc/server2/t0u9yu/MBUDAKER.rar.html