NIOS2 IDE problem

i have the same error :(

--- Quote Start ---

Using cable "USB-Blaster [USB-0]", device 1, instance 0x00

Pausing target processor: OK

Reading System ID at address 0x12021CA8:

ID value does not match: read 0xFFFFFFFF; expected 0x79EB8C32

Timestamp value does not match: image on board is older than expected

Read timestamp 0:59:59 1970/01/01; expected 15:11:28 2009/06/16

The software you are downloading may not run on the system which is currently

configured into the device. Please download the correct SOF or recompile.

Restarting target processor

--- Quote End ---