/usr/bin/make -j1 O=/home/book/100ask_imx6ull-sdk/Buildroot_2019.02/output HOSTCC="/usr/bin/gcc" HOSTCXX="/usr/bin/g++" syncconfig

make[1]: Entering directory '/home/book/100ask_imx6ull-sdk/Buildroot_2019.02'

make[1]: Leaving directory '/home/book/100ask_imx6ull-sdk/Buildroot_2019.02'

>>> toolchain-external-custom  Configuring

Cannot execute cross-compiler '/home/book/100ask_imx6ull-sdk/ToolChain/gcc-linaro-arm-linux-gnueabihf-4.9-2014.07_linux/bin/arm-linux-gnueabihf-gcc-4.9.1-gcc'

package/pkg-generic.mk:228: recipe for target '/home/book/100ask_imx6ull-sdk/Buildroot_2019.02/output/build/toolchain-external-custom/.stamp_configured' failed

make: *** [/home/book/100ask_imx6ull-sdk/Buildroot_2019.02/output/build/toolchain-external-custom/.stamp_configured] Error 1