I am developing a Tango AR application. ZenfoneAR device (Android 7.0 Nougat).
I improved the sample project and developed the application. However, when starting the application, the following warning message is displayed.
Dialogue message
Detected problems with app native libraries(please consult log for detail): libtango_client_api.so: unauthorized access to "libbinder.so" libtango_client_api.so: unauthorized access to "libcutils.so" libtango_client_api.so: unauthorized access to "libutils.so" libtango_client_api.so: unauthorized access to "libgui.so" libtango_client_api.so: unauthorized access to "libandroid_runtime.so" libtango_client_api.so: unauthorized access to "libui.so"
Logcat
W/linker: library "libbinder.so" ("/system/lib64/libbinder.so") needed or dlopened by "/data/data/com.google.tango/libfiles/default/libtango_client_api.so" is not accessible for the namespace "classloader-namespace" - the access is temporarily granted as a workaround for http://b/26394120, note that the access will be removed in future releases of Android. W/linker: library "libcutils.so" ("/system/lib64/libcutils.so") needed or dlopened by "/data/data/com.google.tango/libfiles/default/libtango_client_api.so" is not accessible for the namespace "classloader-namespace" - the access is temporarily granted as a workaround for http://b/26394120, note that the access will be removed in future releases of Android. W/linker: library "libutils.so" ("/system/lib64/libutils.so") needed or dlopened by "/data/data/com.google.tango/libfiles/default/libtango_client_api.so" is not accessible for the namespace "classloader-namespace" - the access is temporarily granted as a workaround for http://b/26394120, note that the access will be removed in future releases of Android. W/linker: library "libgui.so" ("/system/lib64/libgui.so") needed or dlopened by "/data/data/com.google.tango/libfiles/default/libtango_client_api.so" is not accessible for the namespace "classloader-namespace" - the access is temporarily granted as a workaround for http://b/26394120, note that the access will be removed in future releases of Android. W/linker: library "libandroid_runtime.so" ("/system/lib64/libandroid_runtime.so") needed or dlopened by "/data/data/com.google.tango/libfiles/default/libtango_client_api.so" is not accessible for the namespace "classloader-namespace" - the access is temporarily granted as a workaround for http://b/26394120, note that the access will be removed in future releases of Android. W/linker: library "libui.so" ("/system/lib64/libui.so") needed or dlopened by "/data/data/com.google.tango/libfiles/default/libtango_client_api.so" is not accessible for the namespace "classloader-namespace" - the access is temporarily granted as a workaround for http://b/26394120, note that the access will be removed in future releases of Android. E/linker: library "libavenhancements.so" ("/system/vendor/lib64/libavenhancements.so") needed or dlopened by "/system/lib64/libmedia.so" is not accessible for the namespace: [name="classloader-namespace", ld_library_paths="", default_library_paths="/data/app/<package name>-2/lib/arm64:/system/fake-libs64:/data/app/<package name>-2/base.apk!/lib/arm64-v8a", permitted_paths="/data:/mnt/expand:/data/data/<package name>"]
I think this is due to the "NDK Apps Linking to Platform Libraries" on the following site.
https://developer.android.com/about/versions/nougat/android-7.0-changes.html#ndk
Accordingly, is "libtango_client_api.so" a "private platform library"?
Or is there an error in my configuration file?
I don’t know how to fix it, so I can’t improve it. How can I improve my warning? please help me.
application /build.gradle
android { compileSdkVersion 23 buildToolsVersion '25.0.0' dataBinding { enabled = true } defaultConfig { applicationId "<package name>" minSdkVersion 19 targetSdkVersion 23 versionCode 1 versionName "1.0" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } lintOptions { abortOnError false } } } dependencies { apply from: '../version.gradle' compile "com.google.tango:sdk-base:${release_version}" compile "com.google.tango:support-base:${release_version}" compile "com.google.tango:support-reconstruction:${release_version}" compile 'org.rajawali3d:rajawali: 1.1.668@aar ' compile 'com.android.support:appcompat-v7:23.4.0' compile 'commons-io:commons-io:2.4' compile 'org.apache.commons:commons-lang3:3.4' }
$ {release_version} = 1.54
Project /build.gradle
buildscript { repositories { jcenter() flatDir { dirs 'libs' } } dependencies { classpath 'com.android.tools.build:gradle:2.3.3' } } allprojects { repositories { mavenLocal() jcenter() } }
app / src / home / AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="<package name>" android:versionCode="0" android:versionName="0" > <uses-sdk android:minSdkVersion="19" android:targetSdkVersion="23" /> <uses-permission android:name="android.permission.CAMERA" /> <application ...about application...> <uses-library android:name="com.projecttango.libtango_device2" android:required="true" /> <activity ...about activity...> ... </activity> </application> </manifest>
By the way, the configuration file is almost the same as the Tango sample project.