build error from cyanogenmod

creating userdata.img...
Running:  mkf2fsuserimg.sh /tmp/tmpq5xIsE 536870912
Traceback (most recent call last):
  File "./build/tools/releasetools/add_img_to_target_files", line 365, in <module>
    main(sys.argv[1:])
  File "./build/tools/releasetools/add_img_to_target_files", line 359, in main
    AddImagesToTargetFiles(args[0])
  File "./build/tools/releasetools/add_img_to_target_files", line 328, in AddImagesToTargetFiles
    AddUserdata(output_zip)
  File "./build/tools/releasetools/add_img_to_target_files", line 184, in AddUserdata
    succ = build_image.BuildImage(user_dir, image_props, img.name)
  File "/home/tony/CyanogenMod/build/tools/releasetools/build_image.py", line 274, in BuildImage
    exit_code = RunCommand(build_command)
  File "/home/tony/CyanogenMod/build/tools/releasetools/build_image.py", line 42, in RunCommand
    p = subprocess.Popen(cmd)
  File "/usr/lib/python2.7/subprocess.py", line 710, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1327, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory
make: *** [/home/tony/CyanogenMod/out/target/product/quincyatt/obj/PACKAGING/target_files_intermediates/cm_quincyatt-target_files-dbbeb4b3b9.zip] Error 1
make: *** Deleting file/home/tony/CyanogenMod/out/target/product/quincyatt/obj/PACKAGING/target_files_intermediates/cm_quincyatt-target_files-dbbeb4b3b9.zip'