Android build error in ubuntu 16 04

[Ajith Kumar]

[  2% 2026/87160] Import includes file: out/host/linux-x86/obj/EXECUTABLES/sepolicy-analyze_intermediates/import_includes
[  2% 2027/87160] target Prebuilt: system_core_charger_res_images_battery_fail.png (out/target/product/mek_8q/obj/ETC/system_core_charger_res_images_battery_fail.png_intermediates/battery_fail.png)
[  2% 2028/87160] Install: out/target/product/mek_8q/root/res/images/charger/battery_fail.png
[  2% 2029/87160] target Prebuilt: system_core_charger_res_images_battery_scale.png (out/target/product/mek_8q/obj/ETC/system_core_charger_res_images_battery_scale.png_intermediates/battery_scale.png)
[  2% 2030/87160] Install: out/target/product/mek_8q/root/res/images/charger/battery_scale.png
[  2% 2031/87160] Notice file: system/sepolicy/NOTICE -- out/target/product/mek_8q/obj/NOTICE_FILES/src/fake_packages/selinux_policy-timestamp.txt
[  2% 2032/87160] Install: out/target/product/mek_8q/fake_packages/charger_res_images-timestamp
[  2% 2033/87160] host C: sepolicy-analyze <= system/sepolicy/tools/sepolicy-analyze/sepolicy-analyze.c
[  2% 2034/87160] host C: sepolicy-analyze <= system/sepolicy/tools/sepolicy-analyze/perm.c
[  2% 2035/87160] host C: sepolicy-analyze <= system/sepolicy/tools/sepolicy-analyze/dups.c
[  2% 2036/87160] host C: sepolicy-analyze <= system/sepolicy/tools/sepolicy-analyze/neverallow.c
[  2% 2037/87160] host C: sepolicy-analyze <= system/sepolicy/tools/sepolicy-analyze/typecmp.c
[  2% 2038/87160] host C: sepolicy-analyze <= system/sepolicy/tools/sepolicy-analyze/attribute.c
[  2% 2039/87160] host C: sepolicy-analyze <= system/sepolicy/tools/sepolicy-analyze/booleans.c
[  2% 2040/87160] Check module type: out/host/linux-x86/obj/STATIC_LIBRARIES/libsepol_intermediates/link_type
[  2% 2041/87160] Export includes file:  -- out/host/linux-x86/obj/EXECUTABLES/sepolicy-analyze_intermediates/export_includes
[  2% 2042/87160] Export includes file:  -- out/host/linux-x86/obj/SHARED_LIBRARIES/libsepol_intermediates/export_includes
[  2% 2043/87160] Import includes file: out/host/linux-x86/obj/EXECUTABLES/version_policy_intermediates/import_includes
[  2% 2044/87160] build out/target/product/mek_8q/obj/ETC/plat_sepolicy.cil_intermediates/plat_policy.conf
FAILED: out/target/product/mek_8q/obj/ETC/plat_sepolicy.cil_intermediates/plat_policy.conf
/bin/bash -c "(m4  -D mls_num_sens=1 -D mls_num_cats=1024 -D target_build_variant=userdebug -D target_with_dexpreopt=true -D target_arch=arm64 -D target_with_asan=false -D target_full_treble=false  -s system/sepolicy/private/security_classes system/sepolicy/private/initial_sids system/sepolicy/private/access_vectors system/sepolicy/public/global_macros system/sepolicy/public/neverallow_macros system/sepolicy/private/mls_macros system/sepolicy/private/mls_decl system/sepolicy/private/mls system/sepolicy/private/policy_capabilities system/sepolicy/public/te_macros system/sepolicy/public/attributes system/sepolicy/private/attributes system/sepolicy/public/ioct..............

...........make[1]: Leaving directory '/home/kesava/AOSP/android_build/out/target/product/mek_8q/obj/KERNEL_OBJ'
make: Leaving directory '/home/kesava/AOSP/android_build/vendor/nxp-opensource/kernel_imx'
ninja: build stopped: subcommand failed.
12:02:28 ninja failed with: exit status 1

#### failed to build some targets (10:00 (mm:ss)) ####

I am new to this, if anybody knew what this error mean please reply me.
Thank you.