Android ndk example app doesn't seem to build to missing JNI headers while mobile-install works fine

[prasadpamidi]

Hi,

I am trying to build cpp with ndk for android project and started noticing issues while building. I noticed the same issue is happening in examples repository as well with ndk example...

Ran the below command:

bazel build //app/src/main:app --fat_apk_cpu=x86 --android_crosstool_top=@androidndk//:toolchain

And noticing the below issue in the command prompt.

Starting local Bazel server and connecting to it...
WARNING: For repository 'rules_jvm_external', the root module requires module version [email protected], but got [email protected] in the resolved dependency graph.
DEBUG: /private/var/tmp/_bazel_prasadpamidi/f649ff770c75e43e391c14e7c6ebc48c/external/rules_jvm_external~/private/extensions/maven.bzl:154:14: The maven repository 'maven' is used in two different bazel modules, originally in '' and now in 'protobuf'
DEBUG: /private/var/tmp/_bazel_prasadpamidi/f649ff770c75e43e391c14e7c6ebc48c/external/rules_jvm_external~/private/extensions/maven.bzl:154:14: The maven repository 'maven' is used in two different bazel modules, originally in '' and now in 'protobuf'
DEBUG: /private/var/tmp/_bazel_prasadpamidi/f649ff770c75e43e391c14e7c6ebc48c/external/rules_jvm_external~/private/extensions/maven.bzl:154:14: The maven repository 'maven' is used in two different bazel modules, originally in '' and now in 'protobuf'
WARNING: /private/var/tmp/_bazel_prasadpamidi/f649ff770c75e43e391c14e7c6ebc48c/external/rules_android~/tools/android/BUILD:271:6: in alias rule @@rules_android~//tools/android:dexsharder: Target '@@rules_android~//tools/android:dexsharder' violates visibility of target '@@bazel_tools//src/tools/android/java/com/google/devtools/build/android/dexer:DexFileSplitter'. Continuing because --nocheck_visibility is active
INFO: Analyzed target //app/src/main:app (368 packages loaded, 17520 targets configured).
INFO: From Building external/rules_jvm_external~/private/tools/java/com/github/bazelbuild/rules_jvm_external/zip/libzip.jar (1 source file) [for tool]:
warning: [options] source value 8 is obsolete and will be removed in a future release
warning: [options] target value 8 is obsolete and will be removed in a future release
warning: [options] To suppress warnings about obsolete options, use -Xlint:-options.
INFO: From Building external/rules_jvm_external~/private/tools/java/com/github/bazelbuild/rules_jvm_external/jar/AddJarManifestEntry.jar (1 source file) [for tool]:
warning: [options] source value 8 is obsolete and will be removed in a future release
warning: [options] target value 8 is obsolete and will be removed in a future release
warning: [options] To suppress warnings about obsolete options, use -Xlint:-options.
INFO: From Building external/bazel_tools/src/tools/android/java/com/google/devtools/build/android/dexer/DexFileSplitter.jar (5 source files) and running annotation processors (AutoValueProcessor) [for tool]:
warning: [options] source value 8 is obsolete and will be removed in a future release
warning: [options] target value 8 is obsolete and will be removed in a future release
warning: [options] To suppress warnings about obsolete options, use -Xlint:-options.
ERROR: /Users/prasadpamidi/examples/android/ndk/app/src/main/BUILD.bazel:17:11: Compiling app/src/main/cpp/native-lib.cpp failed: (Exit 1): cc_wrapper.sh failed: error executing CppCompile command (from target //app/src/main:jni_lib) external/bazel_tools~cc_configure_extension~local_config_cc/cc_wrapper.sh -U_FORTIFY_SOURCE -fstack-protector -Wall -Wthread-safety -Wself-assign -Wunused-but-set-parameter -Wno-free-nonheap-object ... (remaining 21 arguments skipped)

Use --sandbox_debug to see verbose messages from the sandbox and retain the sandbox build root for debugging
app/src/main/cpp/native-lib.cpp:1:10: fatal error: 'jni.h' file not found
#include <jni.h>
         ^~~~~~~
1 error generated.
Target //app/src/main:app failed to build
Use --verbose_failures to see the command lines of failed build steps.
INFO: Elapsed time: 30.667s, Critical Path: 3.90s
INFO: 44 processes: 11 internal, 30 darwin-sandbox, 3 worker.

This issue isn't happening when i run bazel mobile-install //app/src/main:app --fat_apk_cpu=x86 --start_app --android_crosstool_top=@androidndk//:toolchain.

Am I doing something wrong? is the cpp with ndk not supposed to work with build?