help:.elf cannot download to fpga

Question

hi:

when I download .elf to FPGA ,but faileded ,

!SESSION 2011-06-13 11:27:44.687 -----------------------------------------------

!!ENTRY com.altera.sbtgui.launch 2 0 2011-06-13 12:04:09.546

!MESSAGE The expected CPU name does not match the selected target CPU name.

!ENTRY com.altera.sbtgui.launch 2 0 2011-06-13 12:04:09.546

!MESSAGE The expected Stdout device name does not match the selected target byte stream device name.

!ENTRY com.altera.sbtgui.launch 1 0 2011-06-13 12:04:12.000

!MESSAGE Executing: [C:\WINDOWS\system32\cmd.exe, /C, C:/altera/10.1/quartus\bin\cygwin\bin\bash.exe, -c, nios2-download '--cable=USB-Blaster on localhost [USB-0]' --device=1 --instance=0 --sidp=0x25018 --id=0x0 --timestamp=1307935183 /cygdrive/d/10.1/apical_top_sq/apical_top_demo_isp_youjing/pri_apical/software/fsysid/fsysid.elf]

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:04:20.250

!MESSAGE Failed Executing: [nios2-download, '--cable=USB-Blaster on localhost [USB-0]', --device=1, --instance=0, --sidp=0x25018, --id=0x0, --timestamp=1307935183, /cygdrive/d/10.1/apical_top_sq/apical_top_demo_isp_youjing/pri_apical/software/fsysid/fsysid.elf] return code: 4, 'other error'

!ENTRY com.altera.sbtgui.launch 2 0 2011-06-13 12:07:00.796

!MESSAGE Obtaining system ID information for selected processor

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:00.796

!MESSAGE SOPC design not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:00.796

!MESSAGE CPU module not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:00.796

!MESSAGE The SOPC design does not contain a CPU of a supported architecture.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:00.796

!MESSAGE CPU architecture type not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:00.796

!MESSAGE CPU master group not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:04.187

!MESSAGE CPU architecture type not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:04.187

!MESSAGE CPU master group not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:04.750

!MESSAGE SOPC design not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:04.750

!MESSAGE CPU module not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:04.750

!MESSAGE The SOPC design does not contain a CPU of a supported architecture.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:04.750

!MESSAGE CPU architecture type not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:04.750

!MESSAGE CPU master group not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:13.546

!MESSAGE SOPC design not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:13.578

!MESSAGE CPU module not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:13.609

!MESSAGE The SOPC design does not contain a CPU of a supported architecture.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:13.640

!MESSAGE CPU architecture type not set.

!ENTRY com.altera.sbtgui.launch 4 0 2011-06-13 12:07:13.687

!MESSAGE CPU master group not set.

!ENTRY com.altera.sbtgui.launch 2 0 2011-06-13 12:07:13.703

!MESSAGE Obtaining system ID information for selected processor

!ENTRY com.altera.sbtgui.launch 2 0 2011-06-13 12:07:14.218

!MESSAGE Obtaining system ID information for selected processor