[Android General] krishV:
i have got build error please can you help

vamsi@vamsi-GL553VD:~/pie$ make
============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=9
TARGET_PRODUCT=aosp_arm64
TARGET_BUILD_VARIANT=eng
TARGET_BUILD_TYPE=release
TARGET_ARCH=arm64
TARGET_ARCH_VARIANT=armv8-a
TARGET_CPU_VARIANT=generic
TARGET_2ND_ARCH=arm
TARGET_2ND_ARCH_VARIANT=armv8-a
TARGET_2ND_CPU_VARIANT=generic
HOST_ARCH=x86_64
HOST_2ND_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-4.15.0-38-generic-x86_64-Ubuntu-18.04.1-LTS
HOST_CROSS_OS=windows
HOST_CROSS_ARCH=x86
HOST_CROSS_2ND_ARCH=x86_64
HOST_BUILD_TYPE=release
BUILD_ID=PD1A.180720.031
OUT_DIR=out
============================================
[1/1] out/soong/.minibootstrap/minibp out/soong/.bootstrap/build.ninja
[55/56] glob prebuilts/ndk/stl.bp
[77/77] out/soong/.bootstrap/bin/soong_build out/soong/build.ninja
out/build-aosp_arm64-cleanspec.ninja is missing, regenerating...
out/build-aosp_arm64.ninja is missing, regenerating...
[25/965] including development/build/Android.mk ...
development/build/build_android_stubs.mk:43: warning: android_stubs_current
development/build/build_android_stubs.mk:43: warning: metalava_android_stubs_current metalava_android_stubs_current
development/build/build_android_stubs.mk:43: warning: android_system_stubs_current
development/build/build_android_stubs.mk:43: warning: android_test_stubs_current
development/build/build_android_stubs.mk:43: warning: metalava_android_system_stubs_current metalava_android_system_stubs_current
development/build/build_android_stubs.mk:43: warning: metalava_android_test_stubs_current metalava_android_test_stubs_current
[566/965] including system/sepolicy/Android.mk ...
system/sepolicy/Android.mk:79: warning: BOARD_SEPOLICY_VERS not specified, assuming current platform version
[965/965] including tools/tradefederation/core/Android.mk ...
[ 99% 1155/1156] glob tools/tradefederation/core/atest/**/*.py
[ 0% 854/104780] build out/target/common/obj/JAVA_LIBRARIES/core-oj_intermediates/annotated/timestamp
WARNING: duplicate annotation of type libcore.util.NonNull
WARNING: duplicate annotation of type libcore.util.NonNull
Found class java.io.PrintWriter, but unable to insert @libcore.util.NonNull:
@libcore.util.NonNull (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at outermost type, RETURN_TYPE=ReturnTypeCriterion for method: append(C)Ljava/io/Writer;, IN_METHOD=in method 'append(C)Ljava/io/Writer;', IN_CLASS=In class 'java.io.PrintWriter' (exactly)}
Found class java.io.PrintWriter, but unable to insert @libcore.util.NonNull:
@libcore.util.NonNull (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at outermost type, RETURN_TYPE=ReturnTypeCriterion for method: append(C)Ljava/lang/Appendable;, IN_METHOD=in method 'append(C)Ljava/lang/Appendable;', IN_CLASS=In class 'java.io.PrintWriter' (exactly)}
Found class java.io.PrintWriter, but unable to insert @libcore.util.NonNull:
@libcore.util.NonNull (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at outermost type, RETURN_TYPE=ReturnTypeCriterion for method: append(Ljava/lang/CharSequence;)Ljava/io/Writer;, IN_METHOD=in method 'append(Ljava/lang/CharSequence;)Ljava/io/Writer;', IN_CLASS=In class 'java.io.PrintWriter' (exactly)}
Found class java.io.PrintWriter, but unable to insert @libcore.util.Nullable:
@libcore.util.Nullable (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at outermost type, PARAM=ParamCriterion for method: append(Ljava/lang/CharSequence;) at position: 0, IN_METHOD=in method 'append(Ljava/lang/CharSequence;)Ljava/io/Writer;', IN_CLASS=In class 'java.io.PrintWriter' (exactly)}
Found class java.io.PrintWriter, but unable to insert @libcore.util.NonNull:
@libcore.util.NonNull (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at outermost type, RETURN_TYPE=ReturnTypeCriterion for method: append(Ljava/lang/CharSequence;)Ljava/lang/Appendable;, IN_METHOD=in method 'append(Ljava/lang/CharSequence;)Ljava/lang/Appendable;', IN_CLASS=In class 'java.io.PrintWriter' (exactly)}
Found class java.io.PrintWriter, but unable to insert @libcore.util.Nullable:
@libcore.util.Nullable (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at outermost type, PARAM=ParamCriterion for method: append(Ljava/lang/CharSequence;) at position: 0, IN_METHOD=in method 'append(Ljava/lang/CharSequence;)Ljava/lang/Appendable;', IN_CLASS=In class 'java.io.PrintWriter' (exactly)}
Found class java.io.PrintWriter, but unable to insert @libcore.util.NonNull:
@libcore.util.NonNull (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at outermost type, RETURN_TYPE=ReturnTypeCriterion for method: append(Ljava/lang/CharSequence;II)Ljava/io/Writer;, IN_METHOD=in method 'append(Ljava/lang/CharSequence;II)Ljava/io/Writer;', IN_CLASS=In class 'java.io.PrintWriter' (exactly)}
Found class java.io.PrintWriter, but unable to insert @libcore.util.Nullable:
@libcore.util.Nullable (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at outermost type, PARAM=ParamCriterion for method: append(Ljava/lang/CharSequence;II) at position: 0, IN_METHOD=in method 'append(Ljava/lang/CharSequence;II)Ljava/io/Writer;', IN_CLASS=In class 'java.io.PrintWriter' (exactly)}
Found class java.io.PrintWriter, but unable to insert @libcore.util.NonNull:
@libcore.util.NonNull (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at outermost type, RETURN_TYPE=ReturnTypeCriterion for method: append(Ljava/lang/CharSequence;II)Ljava/lang/Appendable;, IN_METHOD=in method 'append(Ljava/lang/CharSequence;II)Ljava/lang/Appendable;', IN_CLASS=In class 'java.io.PrintWriter' (exactly)}
Found class java.io.PrintWriter, but unable to insert @libcore.util.Nullable:
@libcore.util.Nullable (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at outermost type, PARAM=ParamCriterion for method: append(Ljava/lang/CharSequence;II) at position: 0, IN_METHOD=in method 'append(Ljava/lang/CharSequence;II)Ljava/lang/Appendable;', IN_CLASS=In class 'java.io.PrintWriter' (exactly)}
Found class java.util.HashMap, but unable to insert @libcore.util.NonNull:
@libcore.util.NonNull (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at ( [TYPE_ARGUMENT(0)] ), RETURN_TYPE=ReturnTypeCriterion for method: entrySet()Ljava/util/Set;, IN_METHOD=in method 'entrySet()Ljava/util/Set;', IN_CLASS=In class 'java.util.HashMap' (exactly)}
Found class java.util.HashMap, but unable to insert @libcore.util.NullFromTypeParam:
@libcore.util.NullFromTypeParam (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at ( [TYPE_ARGUMENT(0), TYPE_ARGUMENT(0)] ), RETURN_TYPE=ReturnTypeCriterion for method: entrySet()Ljava/util/Set;, IN_METHOD=in method 'entrySet()Ljava/util/Set;', IN_CLASS=In class 'java.util.HashMap' (exactly)}
Found class java.util.HashMap, but unable to insert @libcore.util.NullFromTypeParam:
@libcore.util.NullFromTypeParam (nl=false) @ {GENERIC_ARRAY_LOCATION=GenericArrayLocationCriterion at ( [TYPE_ARGUMENT(0), TYPE_ARGUMENT(1)] ), RETURN_TYPE=ReturnTypeCriterion for method: entrySet()Ljava/util/Set;, IN_METHOD=in method 'entrySet()Ljava/util/Set;', IN_CLASS=In class 'java.util.HashMap' (exactly)}
[ 2% 3050/104780] Yacc: ss <= external/iproute2/misc/ssfilter.y
FAILED: out/target/product/generic_arm64/obj/EXECUTABLES/ss_intermediates/ssfilter.c
/bin/bash -c "prebuilts/build-tools/linux-x86/bin/bison -d --defines=out/target/product/generic_arm64/obj/EXECUTABLES/ss_intermediates/ssfilter.h -o out/target/product/generic_arm64/obj/EXECUTABLES/ss_intermediates/ssfilter.c external/iproute2/misc/ssfilter.y"
external/iproute2/misc/ssfilter.y: conflicts: 35 shift/reduce
prebuilts/build-tools/linux-x86/bin/bison: m4 subprocess failed: No such file or directory
[ 2% 3059/104780] target C++: sgdisk <= external/gptfdisk/parttypes.cc
ninja: build stopped: subcommand failed.
16:59:01 ninja failed with: exit status 1

#### failed to build some targets (07:22 (mm:ss)) ####