第三方应用调用系统SO 库失败Caused by: java.lang.UnsatisfiedLinkError: dlopen failed: library

在Android 31平台,尝试使用第三方应用调用系统SO 库,会报如下的错误

Caused by: java.lang.UnsatisfiedLinkError: dlopen failed: library "/system/lib64/XXX.so" needed or dlopened by "/apex/com.android.art/lib64/libnativeloader.so" is not accessible for the namespace "classloader-namespace"

大体原因是,Android N 开始限制 第三方 应用使用非公开的 系统库

临时解决debug 方法:

将你要用的到 XXX.so 加入到 /system/etc/public.libraries.txt

1. adb remount

2: adb pull /system/etc/public.libraries.txt [你要保存的目录]

3:将你要用的到 XXX.so 加入到 /system/etc/public.libraries.txt

4. adb push [public.libraries.txt 所在的路径] /system/etc/

5. adb reboot

参考:

Warning: Version of org.bytedeco:ffmpeg could not be found. 2025-10-29 19:01:00.021 22810-22810 nativeloader com.tencent.yolov5ncnn D Load libavutil.so using class loader ns clns-9 (caller=/data/app/~~0s9q1fdJ6nIDr-NvvFt-9w==/com.tencent.yolov5ncnn-B78ZAKjyur2KFuRlrdpbQQ==/base.apk): dlopen failed: library "libavutil.so" not found 2025-10-29 19:01:00.047 22810-22810 nativeloader com.tencent.yolov5ncnn D Load libjniavutil.so using class loader ns clns-9 (caller=/data/app/~~0s9q1fdJ6nIDr-NvvFt-9w==/com.tencent.yolov5ncnn-B78ZAKjyur2KFuRlrdpbQQ==/base.apk): dlopen failed: library "libjniavutil.so" not found 2025-10-29 19:01:00.086 22810-22810 cent.yolov5ncnn com.tencent.yolov5ncnn I Rejecting re-init on previously-failed class java.lang.Class<org.bytedeco.ffmpeg.global.avutil>: java.lang.UnsatisfiedLinkError: dlopen failed: library "libjniavutil.so" not found at void java.lang.Runtime.loadLibrary0(java.lang.ClassLoader, java.lang.Class, java.lang.String) (Runtime.java:1090) at void java.lang.Runtime.loadLibrary0(java.lang.Class, java.lang.String) (Runtime.java:1012) at void java.lang.System.loadLibrary(java.lang.String) (System.java:1765) at java.lang.String org.bytedeco.javacpp.Loader.loadLibrary(java.lang.Class, java.net.URL[], java.lang.String, java.lang.String[]) (Loader.java:1738) at java.lang.String org.bytedeco.javacpp.Loader.load(java.lang.Class, java.util.Properties, boolean, java.lang.String) (Loader.java:1345) at java.lang.String org.bytedeco.javacpp.Loader.load(java.lang.Class, java.util.Properties, boolean) (Loader.java:1157) at java.lang.String org.bytedeco.javacpp.Loader.load() (Loader.java:1133) at void org.bytedeco.ffmpeg.global.avutil.<clinit>() (avutil.java:14) at java.lang.Class java.lang.Class.classForName(java.lang.String, boolean, java.lang.ClassLoader) (Class.java:-2) at java.lang.Class java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (Class.java:597) at java.lang.String org.bytedeco.javacpp.Loader.load(java.lang.Class, java.util.Properties, boolean, java.lang.String) (Loader.java:1212) at java.lang.String org.bytedeco.javacpp.Loader.load(java.lang.Class, java.util.Properties, boolean) (Loader.java:1157) at java.lang.String org.bytedeco.javacpp.Loader.load(java.lang.Class) (Loader.java:1149) at void org.bytedeco.javacv.FFmpegFrameGrabber.tryLoad() (FFmpegFrameGrabber.java:110) at void org.bytedeco.javacv.FFmpegFrameGrabber.<clinit>() (FFmpegFrameGrabber.java:136) at void com.tencent.yolov5ncnn.MainActivity.decodeVideo(android.net.Uri) (MainActivity.java:298) at void com.tencent.yolov5ncnn.MainActivity.onActivityResult(int, int, android.content.Intent) (MainActivity.java:228) at void android.app.Activity.onActivityResult(int, int, android.content.Intent, android.app.ComponentCaller) (Activity.java:7626) at void android.app.Activity.internalDispatchActivityResult(java.lang.String, int, int, android.content.Intent, android.app.ComponentCaller, java.lang.String) (Activity.java:9546) at void android.app.Activity.dispatchActivityResult(java.lang.String, int, int, android.content.Intent, android.app.ComponentCaller, java.lang.String) (Activity.java:9523) at void android.app.ActivityThread.deliverResults(android.app.ActivityThread$ActivityClientRecord, java.util.List, java.lang.String) (ActivityThread.java:6173) at void android.app.ActivityThread.handleSendResult(android.app.ActivityThread$ActivityClientRecord, java.util.List, java.lang.String) (ActivityThread.java:6223) at void android.app.servertransaction.ActivityResultItem.execute(android.app.ClientTransactionHandler, android.app.ActivityThread$ActivityClientRecord, android.app.servertransaction.PendingTransactionActions) (ActivityResultItem.java:78) at void android.app.servertransaction.ActivityTransactionItem.execute(android.app.ClientTransactionHandler, android.app.servertransaction.PendingTransactionActions) (ActivityTransactionItem.java:63) at void android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(android.app.servertransaction.ClientTransaction, android.app.servertransaction.ClientTransactionItem, boolean) (TransactionExecutor.java:133) at void android.app.servertransaction.TransactionExecutor.executeTransactionItems(android.app.servertransaction.ClientTransaction) (TransactionExecutor.java:103) at void android.app.servertransaction.TransactionExecutor.execute(android.app.servertransaction.ClientTransaction) (TransactionExecutor.java:80) at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:2823) at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:110) 2025-10-29 19:01:00.086 22810-22810 cent.yolov5ncnn com.tencent.yolov5ncnn I at boolean android.os.Looper.loopOnce(android.os.Looper, long, int) (Looper.java:248) at void android.os.Looper.loop() (Looper.java:338) at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:9067) at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (Method.java:-2) at void com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run() (RuntimeInit.java:593) at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:932) Caused by: java.lang.UnsatisfiedLinkError: Could not find jniavutil in class, module, and library paths. at java.lang.String org.bytedeco.javacpp.Loader.loadLibrary(java.lang.Class, java.net.URL[], java.lang.String, java.lang.String[]) (Loader.java:1705) at java.lang.String org.bytedeco.javacpp.Loader.load(java.lang.Class, java.util.Properties, boolean, java.lang.String) (Loader.java:1345) at java.lang.String org.bytedeco.javacpp.Loader.load(java.lang.Class, java.util.Properties, boolean) (Loader.java:1157) at java.lang.String org.bytedeco.javacpp.Loader.load() (Loader.java:1133) at void org.bytedeco.ffmpeg.global.avutil.<clinit>() (avutil.java:14) at java.lang.Class java.lang.Class.classForName(java.lang.String, boolean, java.lang.ClassLoader) (Class.java:-2) at java.lang.Class java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (Class.java:597) at java.lang.String org.bytedeco.javacpp.Loader.load(java.lang.Class, java.util.Properties, boolean, java.lang.String) (Loader.java:1212) at java.lang.String org.bytedeco.javacpp.Loader.load(java.lang.Class, java.util.Properties, boolean) (Loader.java:1157) at java.lang.String org.bytedeco.javacpp.Loader.load(java.lang.Class) (Loader.java:1149) at void org.bytedeco.javacv.FFmpegFrameGrabber.tryLoad() (FFmpegFrameGrabber.java:110) at void org.bytedeco.javacv.FFmpegFrameGrabber.<clinit>() (FFmpegFrameGrabber.java:136) at void com.tencent.yolov5ncnn.MainActivity.decodeVideo(android.net.Uri) (MainActivity.java:298) at void com.tencent.yolov5ncnn.MainActivity.onActivityResult(int, int, android.content.Intent) (MainActivity.java:228) at void android.app.Activity.onActivityResult(int, int, android.content.Intent, android.app.ComponentCaller) (Activity.java:7626) at void android.app.Activity.internalDispatchActivityResult(java.lang.String, int, int, android.content.Intent, android.app.ComponentCaller, java.lang.String) (Activity.java:9546) at void android.app.Activity.dispatchActivityResult(java.lang.String, int, int, android.content.Intent, android.app.ComponentCaller, java.lang.String) (Activity.java:9523) at void android.app.ActivityThread.deliverResults(android.app.ActivityThread$ActivityClientRecord, java.util.List, java.lang.String) (ActivityThread.java:6173) at void android.app.ActivityThread.handleSendResult(android.app.ActivityThread$ActivityClientRecord, java.util.List, java.lang.String) (ActivityThread.java:6223) at void android.app.servertransaction.ActivityResultItem.execute(android.app.ClientTransactionHandler, android.app.ActivityThread$ActivityClientRecord, android.app.servertransaction.PendingTransactionActions) (ActivityResultItem.java:78) at void android.app.servertransaction.ActivityTransactionItem.execute(android.app.ClientTransactionHandler, android.app.servertransaction.PendingTransactionActions) (ActivityTransactionItem.java:63) at void android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(android.app.servertransaction.ClientTransaction, android.app.servertransaction.ClientTransactionItem, boolean) (TransactionExecutor.java:133) at void android.app.servertransaction.TransactionExecutor.executeTransactionItems(android.app.servertransaction.ClientTransaction) (TransactionExecutor.java:103) at void android.app.servertransaction.TransactionExecutor.execute(android.app.servertransaction.ClientTransaction) (TransactionExecutor.java:80) 2025-10-29 19:01:00.086 22810-22810 cent.yolov5ncnn com.tencent.yolov5ncnn I at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:2823) at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:110) at boolean android.os.Looper.loopOnce(android.os.Looper, long, int) (Looper.java:248) at void android.os.Looper.loop() (Looper.java:338) at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:9067) at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (Method.java:-2) at void com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run() (RuntimeInit.java:593) at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:932) 2025-10-29 19:01:00.086 22810-22810 AndroidRuntime com.tencent.yolov5ncnn D Shutting down VM 2025-10-29 19:01:00.093 22810-22810 AndroidRuntime com.tencent.yolov5ncnn E FATAL EXCEPTION: main Process: com.tencent.yolov5ncnn, PID: 22810 java.lang.NoClassDefFoundError: org.bytedeco.ffmpeg.global.avutil at java.lang.Class.classForName(Native Method) at java.lang.Class.forName(Class.java:597) at org.bytedeco.javacpp.Loader.load(Loader.java:1212) at org.bytedeco.javacpp.Loader.load(Loader.java:1157) at org.bytedeco.javacpp.Loader.load(Loader.java:1133) at org.bytedeco.ffmpeg.avformat.Read_packet_Pointer_BytePointer_int.<clinit>(Read_packet_Pointer_BytePointer_int.java:45) at org.bytedeco.javacv.FFmpegFrameGrabber.<clinit>(FFmpegFrameGrabber.java:363) at com.tencent.yolov5ncnn.MainActivity.decodeVideo(MainActivity.java:298) at com.tencent.yolov5ncnn.MainActivity.onActivityResult(MainActivity.java:228) at android.app.Activity.onActivityResult(Activity.java:7626) at android.app.Activity.internalDispatchActivityResult(Activity.java:9546) at android.app.Activity.dispatchActivityResult(Activity.java:9523) at android.app.ActivityThread.deliverResults(ActivityThread.java:6173) at android.app.ActivityThread.handleSendResult(ActivityThread.java:6223) at android.app.servertransaction.ActivityResultItem.execute(ActivityResultItem.java:78) at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:63) at android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(TransactionExecutor.java:133) at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:103) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:80) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2823) at android.os.Handler.dispatchMessage(Handler.java:110) at android.os.Looper.loopOnce(Looper.java:248) at android.os.Looper.loop(Looper.java:338) at android.app.ActivityThread.main(ActivityThread.java:9067) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:593) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:932) Caused by: java.lang.UnsatisfiedLinkError: dlopen failed: library "libjniavutil.so" not found at java.lang.Runtime.loadLibrary0(Runtime.java:1090) at java.lang.Runtime.loadLibrary0(Runtime.java:1012) at java.lang.System.loadLibrary(System.java:1765) at org.bytedeco.javacpp.Loader.loadLibrary(Loader.java:1738) at org.bytedeco.javacpp.Loader.load(Loader.java:1345) at org.bytedeco.javacpp.Loader.load(Loader.java:1157) at org.bytedeco.javacpp.Loader.load(Loader.java:1133) at org.bytedeco.ffmpeg.global.avutil.<clinit>(avutil.java:14) at java.lang.Class.classForName(Native Method) at java.lang.Class.forName(Class.java:597) at org.bytedeco.javacpp.Loader.load(Loader.java:1212) at org.bytedeco.javacpp.Loader.load(Loader.java:1157) at org.bytedeco.javacpp.Loader.load(Loader.java:1149) at org.bytedeco.javacv.FFmpegFrameGrabber.tryLoad(FFmpegFrameGrabber.java:110) at org.bytedeco.javacv.FFmpegFrameGrabber.<clinit>(FFmpegFrameGrabber.java:136) ... 20 more Caused by: java.lang.UnsatisfiedLinkError: Could not find jniavutil in class, module, and library paths. at org.bytedeco.javacpp.Loader.loadLibrary(Loader.java:1705) ... 31 more
最新发布
10-30
java.lang.UnsatisfiedLinkError: no mrapi in java.library.path 错误通常发生在 Java 应用程序尝试加载本地(如 `mrapi`)时,但 JVM 无法在 `java.library.path` 中找到对应的本地文件。该问题的解决需要确保本地文件正确配置并被 Java 进程识别。 ### 检查本地路径 首先,确认 `mrapi` 的本地文件(例如 `.dll` 文件在 Windows 上、`.so` 文件在 Linux 上、`.dylib` 文件在 macOS 上)是否存在于系统中,并且其路径已被添加到 `java.library.path` 中。可以通过以下方式设置: - **使用命令行参数指定路径**: 在运行 Java 程序时,通过 `-Djava.library.path` 参数指定本地路径,例如: ```bash java -Djava.library.path=/path/to/native/libs -jar your_application.jar ``` - **将本地路径添加至环境变量**: 将本地路径添加到操作系统的 `PATH` 或 `LD_LIBRARY_PATH`(Linux/macOS)中,以确保 Java 能够自动识别这些[^3]。 ### 确认本地名称和格式 确保本地的名称与代码中调用的名称完全匹配。例如,如果代码中使用 `System.loadLibrary("mrapi")`,则文件应命名为 `libmrapi.so`(Linux)、`mrapi.dll`(Windows)或 `libmrapi.dylib`(macOS)。此外,确保文件的架构(32 位或 64 位)与 JVM 架构一致,否则可能导致加载失败[^1]。 ### 使用 `System.load` 替代 `System.loadLibrary` 如果 `System.loadLibrary` 无法正常工作,可以尝试使用 `System.load` 并提供文件的完整路径,例如: ```java System.load("/absolute/path/to/libmrapi.so"); ``` 这种方式避免了依赖 `java.library.path`,直接定位到本地文件的位置。 ### macOS 特定解决方案 在 macOS 上,由于 SIP(System Integrity Protection)机制,某些目录可能不被允许动态链接。在这种情况下,可以将 JNI (如 `libmrapi.dylib`)放置在 `/Library/Java/Extensions` 目录下,而非 JNI 的文件放置在 `/usr/local/lib` 目录下,以便 Java 能够正确加载它们[^4]。 ### 验证文件权限 确保本地文件具有适当的读取和执行权限。在类 Unix 系统上,可以使用 `chmod` 命令更改权限: ```bash chmod +rx /path/to/libmrapi.so ``` ### 示例代码:加载本地 下面是一个简单的示例,展示如何加载本地并在 Java 中使用它: ```java public class NativeLibraryLoader { static { // 使用 loadLibrary 加载,前提是路径已在 java.library.path 中 System.loadLibrary("mrapi"); // 或者使用 load 加载绝对路径下的 // System.load("/absolute/path/to/libmrapi.so"); } // 声明本地方法 public native void someNativeMethod(); public static void main(String[] args) { NativeLibraryLoader loader = new NativeLibraryLoader(); loader.someNativeMethod(); } } ``` ###
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