Unable to build LiteRT for Android

[yg-dickson]

bazel build -c opt --cxxopt=--std=c++17 --config=android_arm64
--fat_apk_cpu=x86,x86_64,arm64-v8a,armeabi-v7a
--define=android_dexmerger_tool=d8_dexmerger
--define=android_incremental_dexing_tool=d8_dexbuilder
//tensorflow/lite/java:tensorflow-lite
Starting local Bazel server and connecting to it...
INFO: Reading 'startup' options from /Users/wang/IdeProjects/tflite-ai/client/LiteRT/.bazelrc: --windows_enable_symlinks
INFO: Options provided by the client:
Inherited 'common' options: --isatty=1 --terminal_columns=123
INFO: Reading rc options for 'build' from /Users/wang/IdeProjects/tflite-ai/client/LiteRT/.bazelrc:
Inherited 'common' options: --experimental_repo_remote_exec
INFO: Reading rc options for 'build' from /Users/wang/IdeProjects/tflite-ai/client/LiteRT/.bazelrc:
'build' options: --define framework_shared_object=true --define tsl_protobuf_header_only=true --define=use_fast_cpp_protos=true --define=allow_oversize_protos=true --spawn_strategy=standalone -c opt --announce_rc --define=grpc_no_ares=true --noincompatible_remove_legacy_whole_archive --features=-force_no_whole_archive --enable_platform_specific_config --define=with_xla_support=true --config=short_logs --experimental_cc_shared_library --experimental_link_static_libraries_once=false --incompatible_enforce_config_setting_visibility --config=v2 --config=litert_prefixes
INFO: Found applicable config definition build:short_logs in file /Users/wang/IdeProjects/tflite-ai/client/LiteRT/.bazelrc: --output_filter=DONT_MATCH_ANYTHING
INFO: Found applicable config definition build:v2 in file /Users/wang/IdeProjects/tflite-ai/client/LiteRT/.bazelrc: --define=tf_api_version=2 --action_env=TF2_BEHAVIOR=1
INFO: Found applicable config definition build:litert_prefixes in file /Users/wang/IdeProjects/tflite-ai/client/LiteRT/.bazelrc: --define=litert_prefixes=external/org_tensorflow/
INFO: Found applicable config definition build:android_arm64 in file /Users/wang/IdeProjects/tflite-ai/client/LiteRT/.bazelrc: --config=android --cpu=arm64-v8a --fat_apk_cpu=arm64-v8a
INFO: Found applicable config definition build:android in file /Users/wang/IdeProjects/tflite-ai/client/LiteRT/.bazelrc: --crosstool_top=//external:android/crosstool --host_crosstool_top=@bazel_tools//tools/cpp:toolchain --dynamic_mode=off --define=xnn_enable_avxvnniint8=false --noenable_platform_specific_config --copt=-w --cxxopt=-std=c++17 --host_cxxopt=-std=c++17 --define=with_xla_support=false
DEBUG: /private/var/tmp/wang/c286a78069d91d2d2c206403e296a20d/external/local_tsl/third_party/py/python_repo.bzl:98:14:
HERMETIC_PYTHON_VERSION variable was not set correctly, using default version.
Python 3.11 will be used.
To select Python version, either set HERMETIC_PYTHON_VERSION env variable in
your shell:
export HERMETIC_PYTHON_VERSION=3.12
OR pass it as an argument to bazel command directly or inside your .bazelrc
file:
--repo_env=HERMETIC_PYTHON_VERSION=3.12
DEBUG: /private/var/tmp/wang/c286a78069d91d2d2c206403e296a20d/external/local_tsl/third_party/py/python_repo.bzl:109:10: Using hermetic Python 3.11
ERROR: Skipping '//tensorflow/lite/java:tensorflow-lite': no such package 'tensorflow/lite/java': BUILD file not found in any of the following directories. Add a BUILD file to a directory to mark it as a package.

• /Users/wang/IdeProjects/tflite-ai/client/LiteRT/tensorflow/lite/java
  WARNING: Target pattern parsing failed.
  ERROR: no such package 'tensorflow/lite/java': BUILD file not found in any of the following directories. Add a BUILD file to a directory to mark it as a package.
• /Users/wang/IdeProjects/tflite-ai/client/LiteRT/tensorflow/lite/java
  INFO: Elapsed time: 2.220s
  INFO: 0 processes.
  FAILED: Build did NOT complete successfully (0 packages loaded)

[yg-dickson]

Is there any tutorial for building LiteRT for Android?

[gabrielpopa]

try bazel build -c opt --cxxopt=--std=c++17 --config=android_arm64 //tflite/c:tensorflowlite_c

don't forget to git submodule update --init --recursive before.

you may need to clean it with bazel clean --expunge

[gabrielpopa]

also you can use bazel query //... to query all the targets that you may need to build

[yg-dickson]

My computer is Mac Studio Apple M1 Max
My operation steps are as follows
Step 1 git clone https://github.com/google-ai-edge/LiteRT.git
Step 2 git submodule update --init --recursive
Step 3 bazel build -c opt --cxxopt=--std=c++17 --config=android_arm64 //tflite/c:tensorflowlite_c

Still error
ERROR: /Users/wangchengyun/IdeProjects/sit/LiteRT/tflite/kernels/BUILD:869:11: no such package '@local_xla//xla/tsl/lib/random': BUILD file not found in directory 'xla/tsl/lib/random' of external repository @local_xla. Add a BUILD file to a directory to mark it as a package. and referenced by '//tflite/kernels:builtin_op_kernels' ERROR: Analysis of target '//tflite/c:tensorflowlite_c' failed; build aborted: INFO: Elapsed time: 36.480s INFO: 0 processes. FAILED: Build did NOT complete successfully (96 packages loaded, 1002 targets configured) currently loading: @org_tensorflow//tensorflow/compiler/mlir/lite Fetching repository @local_config_cc; Running xcode-locator Fetching repository @local_config_xcode; Building xcode-locator Fetching repository @llvm-project; starting Fetching repository @Ruy; starting Fetching /private/var/tmp/_bazel_wangchengyun/e0602d788eedcef614d2e4eb4154b0e9/external/ruy; Extracting 3286a34cc8de6149ac6844107dfdffac91531e72.zip Fetching /private/var/tmp/_bazel_wangchengyun/e0602d788eedcef614d2e4eb4154b0e9/external/cpuinfo; Extracting 3c8b1533ac03dd6531ab6e7b9245d488f13a82a5.zip ➜ LiteRT git:(main)