Nios 10 message error

[Altera_Forum]

Hi 

 When I try to run my project as Hardware in a DE2 board, I get the following message:   Using cable "USB-Blaster [USB-0]", device 1, instance 0x00 Pausing target processor: not responding. Resetting and trying again: FAILED Leaving target processor paused  Does anyone knows what it means?  Thanks

[Altera_Forum]

There can be several causes:[list][*]bad clock input, or no clock at all[*]bad polarity on the reset signal, that keeps the CPU stuck in the reset state[*]design not meeting timing requirements[*]no license for the CPU, and the Opencore evaluation window has been closed (if you don't have the license, don't click on the 'Cancel' button).[/list]

[Altera_Forum]

Daixiwen 

 Thanks for your response.  I built the SOPC design in quartus II v7.1. Then, I tested with a program written in Nios 7.1 and it worked fine. However, I am testing it now on quartus II v10 and I get the message. Is there any process I should do when importing a project from an earlier version?  Thanks Juan

[Altera_Forum]

Did you regenerate the SOPC system in Quartus 10 before recompiling your design?

[Altera_Forum]

have you download the associated *.sof first