I am trying to build an app in Android Studio on Windows. This app uses precompiled .so files, which are kept inside the jniLibs directory.
When I try to run my app I get the following error
java.lang.UnsatisfiedLinkError: dlopen failed: library "ld-linux-x86-64.so.2" not found
How can I fix this?
Related
In my project, I have one .aar file(Bundle of .so files which build on armebabi-v7a) and it will successfully build in the Android AOSP source tree. (Source tree is based on the arm64-v8a).
But I run the application, in the device, it will crash and shows the following error.
java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader
Please help me to solve the below issue,
To pack .aar lib in the application apk itself.
When trying to reference a .AAR java library binding we received the following error:
Unexpected error - Please file a bug report at http://bugzilla.xamarin.com. Reason: System.IO.DirectoryNotFoundException: Could not find a part of the path "\\####\####\Developer\Mobile Apps\Android\####.Android\Project Files\####.Xamarin.Android\obj\Release\__library_projects__\IntercomForXamarinAndroidBase\library_project_imports\res\drawable-xxhdpi\intercomsdk_chat_bubble_right_aligned_notail.9.png" (XA0000) (####.Xamarin.Android) monodroid
Turns out it was because the file path was too long.
Installed windows hotfix:
A file copy operation fails when files or folders have long paths in Windows Explorer
The Error I will get is
Couldn't load json from loader dalvik.system.PathClassLoader[DexPathList[dexElements=[zip file "/data/app/com.uei.tools.ndktest-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.uei.tools.ndktest-1, /vendor/lib, /system/lib]]]: findLibrary returned null
I created a zip file of all .so files and i added into libs folder under app folder i added jar dependency from Module settings dependency.
All serch resulted in sample code of old versions of android studio but there is no sample for Android studio 0.8.6 beta
With Android Studio 0.8.x, you can directly add your prebuilt .so files under a jniLibs folder, inside folders corresponding to each ABIs. For example:
app/src/main/jniLibs/armeabi-v7a/libMyLib.so
app/src/main/jniLibs/x86/libMyLib.so
You can find up-to-date samples at the bottom of this page: http://tools.android.com/tech-docs/new-build-system#sites-attachments
I have followed tutorials to implement NDK functionality in a test project. Created jni folder and added .mk and .c file. NDK is linked and the C++ make file has link to ndk-build file in NDK folder.
On building project i am getting this error :-
Build of configuration Default for project HomeTestingNDK **
/home/falooka/adt-bundle-linux-x86-20130917/ndk/ndk-build all
Compile thumb : HomeTestingNDK <= native.c
make: /home/falooka/adt-bundle-linux-x86-20130917/ndk/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc: Command not found
make: * [obj/local/armeabi/objs/HomeTestingNDK/native.o] Error 127
Build Finished **
Now the issue is that 'make' is going for arm-linux-androideabi-gcc while this file doesn't exist in the folder and instead there is arm-linux-androideabi-gcc-4.6. Now I am totally struck how to solve this issue after googling for a while now.
Thanks in advance.
I was able to resolve my issue by following these multiple steps :
1) For some stupid reason, arm-linux-androideabi-gcc was missing in the ndk directory. So i tried re-installing the zip and extracted it inside the home folder instead of my drive to avoid ownership errors. Now file was there and this error was gone !
2) Then i was getting "Android NDK java.lang.UnsatisfiedLinkError: findLibrary returned null" error which had something to do with libraries missing. After reading some posts, it was prominent that the libs/ folder in project directory should have .so files which were not there. I am using OpenCv with my project so i updated the environment links and put explicit path to ndk-build file in 'make' to make sure it finds ndk-build.
3) I also did this : https://stackoverflow.com/a/7646921/1016544
So finally its compiling and shows building of .so files before installing and runs perfectly.
I am trying to make a Live Wallpaper for android that plays an .mp4 video located on the device in android-asset (with the example I am using, it actually copies the file to the sdcard at runtime/doesn't matter)
I found this example
And using this post I was able to get my eclipse set up with NDK and building the project.
When building in eclipse using the NDK plugin I get this error in my problems window:
Description Resource Path Location Type
make: *** [libs/armeabi/libavcodec.so] Error 1 GLWallpaperVideoDemo-master C/C++ Problem
make: *** Deleting file `libs/armeabi/libavcodec.so' GLWallpaperVideoDemo-master C/C++ Problem
I get the same error if I try to run ndk-build from command prompt.
I downloaded the project from the link above and then imported into eclipse. I added the lib GLWallpaperService to the build path, and made sure my NDK was setup. Knowing that the lib folder changed to libs I also tried moving the GLWallpaperService to the libs folder, which didn't help.
The project builds without NDK just fine in eclipse but obviously errors when trying to run the wallpaper because the native libraries were not built.
How can I resolve this error?
The package you get by git clone https://github.com/frankandrobot/GLWallpaperVideoDemo.git is Linux oriented. The file jni\ffmpeg-android\build\ffmpeg\armeabi\lib\libavcodec.so and many others are simply symbolic links to actual files.
To make this all work easily on Windows, I suggest to go to the jni\ffmpeg-android\build\ffmpeg\armeabi\lib folder, and run
del *.so
copy libavcodec.so.52.99.1 libavcodec.so
copy libavcore.so.0.16.0 libavcore.so
copy libavdevice.so.52.2.2 libavdevice.so
copy libavfilter.so.1.69.0 libavfilter.so
copy libavformat.so.52.88.0 libavformat.so
copy libavutil.so.50.34.0 libavutil.so
copy libswscale.so.0.12.0 libswscale.so
The issue might be because of a corrupted so file. Try to build the ffmpeg library again or find another version. Because I have a different error in eclipse when I try to compile the project:
C:/Android/android-ndk-r8c/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/arm-linux-androideabi-strip:./libs/armeabi/libavcodec.so: File format not recognized
And when I search for this error it seems like the error is because of a corrupted file: NDK prebuilt shared library file format not recognized
Or the library is not in a format that Android can use:
Error in linking C++ static library with android ndk(Error: file format not recognized)