I am trying to build android-o-preview-3 for Nexus Player, but it fails at the very beginning while loading Android.bp of each module.
PLATFORM_VERSION_CODENAME=O
PLATFORM_VERSION=O
TARGET_PRODUCT=aosp_fugu
TARGET_BUILD_VARIANT=userdebug
TARGET_BUILD_TYPE=release
TARGET_ARCH=x86
TARGET_ARCH_VARIANT=silvermont
HOST_ARCH=x86_64
HOST_2ND_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-4.1.4-040104-generic-x86_64-with-Ubuntu-14.04-trusty
HOST_CROSS_OS=windows
HOST_CROSS_ARCH=x86
HOST_CROSS_2ND_ARCH=x86_64
HOST_BUILD_TYPE=release
BUILD_ID=NYC
OUT_DIR=out
============================================
[1/2] out/soong/.bootstrap/bin/minibp out/soong/.minibootstrap/
build.ninja.in[4/4] cp out/soong/.bootstrap/bin/bpglob
[496/497] glob vendor/*/*/Android.bp
[45/46] out/soong/.bootstrap/bin/soong_build out/soong/build.ninja
FAILED: out/soong/build.ninja
out/soong/.bootstrap/bin/soong_build -t -b out/soong -d out/soong/build.ninja.d -o out/soong/build.ninja Android.bp
error: frameworks/base/media/jni/Android.bp:1:1: "libmedia_jni" depends on undefined module "libexif"
[46/46] soong_build docs out/soong/.bootstrap/docs/soong_build.html
FAILED: out/soong/.bootstrap/docs/soong_build.html
out/soong/.bootstrap/bin/soong_build -t -b out/soong --docs out/soong/.bootstrap/docs/soong_build.html ./Android.bp
error: frameworks/rs/cpu_ref/Android.bp:1:1: "libRSCpuRef" depends on undefined module "libblas"
error: frameworks/base/media/jni/Android.bp:1:1: "libmedia_jni" depends on undefined module "libexif"
ninja: build stopped: subcommand failed.
00:15:47 soong failed with: exit status 1
make: *** [run_soong_ui] Error 1