Error processing nios2_system.h

Folks,

I am running into problems when generating nios2_system.h while building a kernel. The output from the builder (up to the point of failure) is:

------------------------------------------------
Microtronix Linux Extensions
Version 1.4, Built June 20, 2005
------------------------------------------------
make: Entering directory `/cygdrive/c/altera/kits/nios2/bin/eclipse/plugins/com.microtronix.nios2linux.kernel_1.4.0/linux-2.6.x'
  no emulation specific options.
  Using /cygdrive/c/altera/kits/nios2/bin/eclipse/plugins/com.microtronix.nios2linux.kernel_1.4.0/linux-2.6.x as source for kernel
  GEN    /workspace/DataLoggingInterface/DLI_kernel/build/Makefile
  CHK     include/linux/version.h
  SYMLINK include/asm -> include/asm-nios2nommu
  CHK     include/nios2_system.h
Can&#39;t call method "getAssignment" on an undefined value at /cygdrive/c/altera/kits/nios2/bin/eclipse/plugins/com.microtronix.nios2linux.kernel_1.4.0/linux-2.6.x/arch/nios2nommu/scripts/PTF/SystemPTF/Module.pm line 207, <STDIN> line 6121.

I have attempted to build the system PTF file many times, yet the kernel builder is still running into difficulty.

Any help would be appreciated.

Regards,

Michael