[yocto] create_image.tar fail

[Neil.Wu at Emerson.com]

Hi,
I use the yocto-bsp tools to creat a new bsp layer, I found this problem like following :

Yoctto-bsp creat myx86 quem

Traceback (most recent call last):
  File "/home/etcrs/poky/scripts/yocto-bsp", line 150, in <module>
    ret = main()
  File "/home/etcrs/poky/scripts/yocto-bsp", line 145, in main
    invoke_subcommand(args, parser, yocto_bsp_help_usage, subcommands)
  File "/home/etcrs/poky/scripts/lib/bsp/help.py", line 73, in invoke_subcommand
    subcommands.get(args[0], subcommand_error)[0](args[1:], usage)
  File "/home/etcrs/poky/scripts/yocto-bsp", line 89, in yocto_bsp_create_subcommand
    yocto_bsp_create(machine, karch, scripts_path, bsp_output_dir, options.codedump, options.properties_file)
  File "/home/etcrs/poky/scripts/lib/bsp/engine.py", line 1450, in yocto_bsp_create
    yocto_common_create(machine, arch, scripts_path, bsp_output_dir, codedump, properties_file, properties)
SyntaxError: function specified for 'gen' property returned nothing : input type:"choicelist" name:"new_kbranch" nameappend:"i386" gen:"bsp.kernel.all_branches" branches_base:"standard:standard/common-pc" prio:"20" msg:"Please choose a machine branch to base this BSP on:" default:"standard/common-pc/base"

How to resolve this problem ?  If you know ,please tell me.
Thanks very much.


Thank you&Best regards
Neil Wu

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