kernel compiling error

root@ubuntu:/home/rajagopal/android/kernel# make -j4
make: /opt/toolchains/arm-eabi-4.6/bin/arm-eabi-gcc: Command not found
Makefile:1414: warning: overriding commands for target `clean'
Makefile:1180: warning: ignoring old commands for target `clean'
scripts/kconfig/conf --silentoldconfig Kconfig
arch/arm/mach-capri/custom_boards/Kconfig:19:warning: defaults for choice values not supported
arch/arm/mach-capri/custom_boards/Kconfig:25:warning: defaults for choice values not supported
arch/arm/mach-capri/custom_boards/Kconfig:31:warning: defaults for choice values not supported
arch/arm/mach-capri/custom_boards/Kconfig:37:warning: defaults for choice values not supported
make: /opt/toolchains/arm-eabi-4.6/bin/arm-eabi-gcc: Command not found
Makefile:1414: warning: overriding commands for target `clean'
Makefile:1180: warning: ignoring old commands for target `clean'
  CHK     include/linux/version.h
++++++++++++++++++++++
CONFIG_ISP = n
obj = drivers/char/broadcom/isp
++++++++++++++++++++++
CONFIG_UNICAM = n
obj = drivers/char/broadcom/unicam
++++++++++++++++++++++
CONFIG_V3D = n
obj = drivers/char/broadcom/v3d
++++++++++++++++++++++
CONFIG_VCE = n
obj = drivers/char/broadcom/vce
  CHK     include/generated/utsrelease.h
  HOSTCC  scripts/dtc/checks.o
  HOSTCC  scripts/genksyms/genksyms.o
  HOSTCC  scripts/genksyms/lex.o
VCHIQ_PLATFORM_CONFIG = capri-bi
Building for MAP build system
CONFIG_ARCH_KONA    = y
  HOSTCC  scripts/dtc/data.o
make[1]: `include/generated/mach-types.h' is up to date.
  CC      scripts/mod/empty.o
/bin/sh: 1: /opt/toolchains/arm-eabi-4.6/bin/arm-eabi-gcc: not found
make[2]: *** [scripts/mod/empty.o] Error 127
make[1]: *** [scripts/mod] Error 2
make[1]: *** Waiting for unfinished jobs....
  HOSTCC  scripts/genksyms/parse.o
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  CC      kernel/bounds.s
/bin/sh: 1: /opt/toolchains/arm-eabi-4.6/bin/arm-eabi-gcc: not found
make[1]: *** [kernel/bounds.s] Error 127
make: *** [prepare0] Error 2
make: *** Waiting for unfinished jobs....
  HOSTCC  scripts/dtc/dtc-parser.tab.o
  HOSTLD  scripts/genksyms/genksyms
  HOSTCC  scripts/dtc/dtc.o
  HOSTCC  scripts/dtc/flattree.o
  HOSTCC  scripts/dtc/fstree.o
  HOSTCC  scripts/dtc/livetree.o
  HOSTCC  scripts/dtc/srcpos.o
  HOSTCC  scripts/dtc/treesource.o
  HOSTCC  scripts/dtc/util.o
  HOSTLD  scripts/dtc/dtc
make: *** [scripts] Error 2