[38087] None of the levels in time Dimension '' defines a chronological key.

For a Time Dimension, it is mandatory that at least one logical level must have set Chronological key. If a chronological key is not set for a Time dimension, then we will get the following error when you check the consistency.

Solution : Expand the Time dimension, go to properties of any logical level, then go to keys tab and check the Chronological Key tab.