Board Description Editor

I also can't use the "new board description" of sopc builder.

But command line mk_target_board is giving the following error:

[SOPC Builder]$ mk_target_board --name=cpuBoard --family=cyclone --clock=50 --index=1 --epcs=U40 --buffer_size=512

Make Target Board version 1.01

Switch summary:

Board name: "cpuBoard"

Board class: cpuBoard

Device family: Cyclone

Clock frequency: 50000000hz

Payload buffer size: 512 bytes

EPCS flash enabled with reference designator: U40

ERROR:

c:/altera/kits/nios2_51/bin/create-board.pl 1279 CALLED (main)

c:/altera/kits/nios2_51/bin/create-board.pl 99 CALLED (cb_setup_directories)

c:/altera/kits/nios2_51/bin/create-board.pl 511 CALLED (europa_utils::find_com

ponent_dir)

/cygdrive/c/altera/quartus51sp1/sopc_builder/bin/europa/europa_utils.pm 2030

CALLED (europa_utils::ensure_class_ptfs) WHERE

'get_class_ptf and ensure_class_ptfs must be called with g{system_directory}' OCCURRED on /cygdrive/c/altera/quartus51sp1/sopc_builder/bin/europa/europa_utils.pm 1923

Anyone knows what may be wrong?