Empty List Relative Time Period

Nibro

<p>Hi,</p><p> </p><p>I use Birt 4.3.0 since two weeks and I would like to create a Cross Tab with the Relative Time Period. But in the "Relative Time Period Aggregation Builder" is no possibility to select a Time Period. The list "Time Period" and "Time Dimension" is empty!</p><p> </p><p>What is wrong?</p><p> </p><p>Thanks</p>