Kernel build error

After referring to the homepage, ( https://developer.ridgerun.com/wiki/index.php?title=Xavier/JetPack_4.1/Compiling_Code/Kernel#Prerequisites )

I compiled it according to the procedure.

  1. l4t installation(R31.1)
  1. Kernel and ToolChain installation (kernel 4.9)
  1. Compile
    make ARCH=arm64 O=KERNEL_OUT tegra_defconfig make ARCH=arm64 O={JETPACK}/Xavier/Linux_for_Tegra/sources/kernel/{KERNEL_DIR}/build CROSS_COMPILE=CROSS_COMPILE={HOME}/toolchain_bin_{VERSION}/{TOOLCHAIN_DIR}/bin/$CC_PREFIX -j4

But the following problem occurred.

Please advise.

Thank you.

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…/arch/arm64/boot/dts/Makefile:112: target 'arch/arm64/boot/dts/ddot’given more than once in the same rule."
…/arch/arm64/boot/dts/Makefile:112: target 'arch/arm64/boot/dts/ddot’given more than once in the same rule."
…/arch/arm64/boot/dts/Makefile:126: warning: overriding recipe for target ‘arch/arm64/boot/dts/ddot
…/arch/arm64/boot/dts/Makefile:113: warning: ignoring old commands for ‘arch/arm64/boot/dts/ddot
…/arch/arm64/boot/dts/Makefile:125: target 'arch/arm64/boot/dts/ddot’given more than once in the same rule."
…/arch/arm64/boot/dts/Makefile:125: target 'arch/arm64/boot/dts/ddot’given more than once in the same rule."
…/arch/arm64/boot/dts/Makefile:125: target 'arch/arm64/boot/dts/ddot’given more than once in the same rule."
make[2]: *** ‘arch/arm64/boot/dts/ddot//hardware/nvidia/platform/t19x/galen/kernel-dts/tegra194-p2888-0001-p2822-0000.dtb’ need by ‘arch/arm64/boot/dts/…//hardware/nvidia/platform/t19x/galen/kernel-dts/tegra194-p2888-0001-p2822-0000.dts’ no rule to make targe. stop.
make[2]: *** Waiting for unfinished jobs…
DTC arch/arm64/boot/dts/ddot
cc1: fatal error: arch/arm64/boot/dts/…: There are no such files or directories…
compilation terminated.
make[2]: *** […/arch/arm64/boot/dts/Makefile:126: arch/arm64/boot/dts/ddot] error 1
make[1]: *** [arch/arm64/Makefile:124: dtbs] error 2

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Have a check this document. And use Linaro 7.3.1 2018.05 toolchain.

https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide%2Fkernel_custom.html%23

Thank you for answer.
I’ve changed the toolchain, but I am having the same problem.