SAP Message AA168 - Ord.dep.start date not allowed in dep.area & (Please correct)

Diagnosis
You have specified an ordinary depreciation start date &V2& in thedepreciation area &V1&. However, you cannot calculate ordinarydepreciation in depreciation area &V1& as a result of the chart ofdepreciation in area &V1&.

System Response
The system does not allow an ordinary depreciation start date.

Procedure
Correct the ordinary depreciation start date in depreciation area &V1&.