blocks|key|3124815|text|只是遇到了类似的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3124816|检查/data/data/your.package.name/lib目录|3124817|当I在我的包目录中时，它当前显示：|3124818|lib+->+/mismatched_uid/settings_10037/fs_1000|code-block|syntax|javascript|3124819|可能是我不小心切换了sharedUserId，所以这个库不能再被访问了。|3124820|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|R|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

just had a similar problem.

Check out your /data/data/your.package.name/lib directory

When i ls in my package directory it currently displays:

<pre><code>lib -&gt; /mismatched_uid/settings_10037/fs_1000
</code></pre>

probably i accidently switched the sharedUserId and thus the library can't be accessed anymore.

blocks|key|243401|text|无需在仿真器上启动device..deploy应用程序并浏览文件夹|type|unstyled|depth|inlineStyleRanges|entityRanges|data|243402|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

No need to root the device..deploy app on emulator and browse the folder

blocks|key|2910511|text|有相同的问题。刚刚清理了项目，它起作用了。神秘..。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2910512|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Had identical problem. 
Just cleaned project and it worked. Mystery..

blocks|key|3124974|text|我也有这个问题，但对于我的情况，我在另一个项目中使用我的库。我不认为这是eclipse或android-ndk的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3124975|你可以检查这些提示，这些提示可以导致UnsatisfiedLinkError，它对我来说很好，祝你好运:)|offset|length|style|CODE|3124976|JNI+|3124977|必须遵循JNI接口的命名规则(您说过您之前确实成功地加载了库，所以您可以忽略这一点)，并且库必须位于目录/your+project/libs/armeabi/|unordered-list-item|3124978|
|3124979|if中。如果您确保完成了上述操作，那么您必须确保您生成的库已安装到您的app.apk中，否则它仍然无法找到该库并向您发送错误。为此，右键单击您的eclipse项目名称，然后进入Build+Path+-+Configure+Build+Path，在左侧菜单上选择Java+Build+Path，然后单击右侧面板上的Order++Export选项卡，并选中您的库名<代码>E217前面的复选框，然后单击OK，然后清除、重新构建并运行您的项目，您的库将安装到app.apk中，一切都完成了。|BOLD|3124980|3124981|​|3124982|📷|atomic|3124983|3124984|3124985|3124986|3124987|3124988|3124989|3124990|编辑：|3124991|3124992|简而言之，如果库没有安装到您的|ordered-list-item|3124993|中，则会抛出UnsatisfiedLinkError，因此无法将其链接到app.apk中|3124994|3124995|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/21e08c43f9ec6b2f18ce91c8ee4d7b15.jpeg|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/65c7730b247e421fd0f314016834706a.jpeg|2|https://ask.qcloudimg.com/http-save/yehe-900000/d7e732ddfa0bb9b2daf3b031e35bb82e.jpeg^0|0|I|K|0|0|1G|R|0|0|2G|A|2T|K|3M|F|4C|2E|0|0|0|1|0|0|1|0|1|0|0|0|1|0|0|1|0|0|1|0|1|1|0|0|1|0|0|1|0|0|1|0|1|2|0|0|1|0|0|3|0|0|0|F|0|0|18|6|K|0|0^^$0|@$1|2|3|4|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1R|8|@$D|1S|E|1T|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|1U|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|1V|8|@$D|1W|E|1X|F|G]]|9|@]|A|$]]|$1|M|3|N|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|O|3|P|5|L|7|1Z|8|@$D|20|E|21|F|Q]|$D|22|E|23|F|Q]|$D|24|E|25|F|Q]|$D|26|E|27|F|Q]]|9|@]|A|$]]|$1|R|3|-4|5|6|7|28|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|29|8|@$D|2A|E|2B|F|Q]]|9|@]|A|$]]|$1|U|3|V|5|W|7|2C|8|@$D|2D|E|2E|F|Q]]|9|@$D|2F|E|2G|1|2H]]|A|$]]|$1|X|3|T|5|6|7|2I|8|@$D|2J|E|2K|F|Q]]|9|@]|A|$]]|$1|Y|3|T|5|6|7|2L|8|@$D|2M|E|2N|F|Q]]|9|@]|A|$]]|$1|Z|3|V|5|W|7|2O|8|@$D|2P|E|2Q|F|Q]]|9|@$D|2R|E|2S|1|2T]]|A|$]]|$1|10|3|T|5|6|7|2U|8|@$D|2V|E|2W|F|Q]]|9|@]|A|$]]|$1|11|3|T|5|6|7|2X|8|@$D|2Y|E|2Z|F|Q]]|9|@]|A|$]]|$1|12|3|V|5|W|7|30|8|@$D|31|E|32|F|Q]]|9|@$D|33|E|34|1|35]]|A|$]]|$1|13|3|T|5|6|7|36|8|@$D|37|E|38|F|Q]]|9|@]|A|$]]|$1|14|3|15|5|6|7|39|8|@$D|3A|E|3B|F|Q]]|9|@]|A|$]]|$1|16|3|-4|5|6|7|3C|8|@]|9|@]|A|$]]|$1|17|3|18|5|19|7|3D|8|@$D|3E|E|3F|F|Q]]|9|@]|A|$]]|$1|1A|3|1B|5|19|7|3G|8|@$D|3H|E|3I|F|Q]|$D|3J|E|3K|F|G]]|9|@]|A|$]]|$1|1C|3|-4|5|6|7|3L|8|@]|9|@]|A|$]]|$1|1D|3|-4|5|6|7|3M|8|@]|9|@]|A|$]]]|1E|$1F|$5|1G|1H|1I|A|$1J|1K|1L|-4]]|1M|$5|1G|1H|1I|A|$1J|1N|1L|-4]]|1O|$5|1G|1H|1I|A|$1J|1P|1L|-4]]]]

I've got this issue too, but for my situation, i'm using my libs in another project. And I don't think it's a matter of eclipse or android-ndk.

you may check these tips that can lead to <code>UnsatisfiedLinkError</code> and it works fine for me, good luck :)

<ol>
<li>must following the JNI interface's nameing rule(you said that you did load the library successfully before, so you can ignore this) and the libraries must in directory <code>/your project/libs/armeabi/</code></li>
<li>if you ensure the above things are done, then you must ensure that your generated libs are installed into your app.apk, otherwise it will still cannot find the lib and thorw you an error. to do this, you right click on your eclipse project name, and go into Build Path - Configure Build Path, on the left menu, choose Java Build Path, then click on the Order and Export tab on the right panel, checking the checkbox before your library name and click OK, then clean,rebuild and run you project, and your libs will be installed into app.apk, things are done.</li>
</ol>

<img src="https://i.stack.imgur.com/4h292.jpg" alt="enter image description here">

<img src="https://i.stack.imgur.com/nOnAz.jpg" alt="enter image description here">

<img src="https://i.stack.imgur.com/kBlEV.jpg" alt="enter image description here">

EDIT:

<ol>
<li>in a word, <code>UnsatisfiedLinkError</code> are thrown if the library is not installed into your app.apk, so it cannot be linked sucessfully.</li>
</ol>

blocks|key|240882|text|如果您尝试在模拟器中运行您的应用程序，请确保您已在run+->+Run+Configurations+->+Target中指定了正确的体系结构(您可能需要使用Window+->+Android虚拟设备管理器添加所需的模拟器)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|240883|我在英特尔模拟器中尝试执行应用程序时遇到了同样的问题，而该应用程序使用的是为ARM预编译的库。|240884|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

If you are trying to run your app in a simulator, then make sure that you have specified the correct architecture in Run -> Run Configurations -> Target (you may need to add the required simulator using Window -> Android Virtual Device Manager).

I had the same problem when trying to execute an app in an Intel simulator, while the app was using a library precompiled for the ARM.

blocks|key|241930|text|如果您有一个带有LOCAL_MODULE+"libXYZ“的本机项目，请确保将其加载为|type|unstyled|depth|inlineStyleRanges|entityRanges|data|241931|System.loadLibrary("XYZ");|code-block|syntax|javascript|241932|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you have a native project with LOCAL_MODULE "libXYZ", make sure to load it as

<pre><code>System.loadLibrary("XYZ");
</code></pre>

blocks|key|2910707|text|如果您的本地项目包含"libXYZ.so"，请确保您的设备上不存在/system/lib/libXYZ.so。有一个痛苦的解决方法:使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2910708|System.load("/data/data/your.package.name/lib/libXY.so")+|code-block|syntax|javascript|2910709|代替System.loadLibrary().|offset|length|style|BOLD|2910710|entityMap^0|0|0|2|K|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

If you have a native project with "libXYZ.so", make sure that /system/lib/libXYZ.so does not exist on your device. There is a painful workaround: use 

<pre><code>System.load("/data/data/your.package.name/lib/libXY.so") 
</code></pre>

instead of System.loadLibrary().

blocks|key|241958|text|在libs文件夹中，我创建了一个名为armeabi-v7a的新文件夹，并将armeabi中的.so文件复制到新文件夹中。它解决了错误。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|241959|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Inside libs folder, I create a new folder called armeabi-v7a, and copied the .so file from armeabi to the new folder. It solves the error.

blocks|key|3125118|text|在我的例子中，在创建系统应用程序时，这个问题与权限有关。在将".so“文件放入/system/lib/或/system/vendor/lib/目录后，我将默认的分配权限600修改为755。它工作得很好。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|CODE|entityRanges|data|3125119|entityMap^0|A|6|V|3|13|C|1G|J|0^^$0|@$1|2|3|4|5|6|7|I|8|@$9|J|A|K|B|C]|$9|L|A|M|B|C]|$9|N|A|O|B|D]|$9|P|A|Q|B|D]]|E|@]|F|$]]|$1|G|3|-4|5|6|7|R|8|@]|E|@]|F|$]]]|H|$]]

In my case, while making a System Application the issue was related to permissions. After putting the ".so" files into <code>/system/lib/</code> or <code>/system/vendor/lib/</code> directory, I modified the default allocated permissions 600 to 755. It worked well.

blocks|key|238619|text|我也遇到了同样的问题，下面是我在项目中遇到的一些问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|238620|238621|238622|将C函数签名从System.load("hello-test");更改为JNIEXPORT+jstring+Java_com_example_testndk_TestNDK_funcNami(JNIEnv*+env,+jobject+thiz)：此处使用Java_<java_package_name>_<java-class-name>_<function-name>;|ordered-list-item|offset|length|style|CODE|238623|Adding+NDK路径到local.properties，在我的示例中为ndk.dir=<my-path-to-ndk-directory>；以及|238624|更新我的build.gradle以也包含在<代码>d15>中：ndk+{+moduleName+"hello-test"+}.|238625|238626|238627|源代码包名称：com.example.testndk|238628|Java类名称：TestNDK|unordered-list-item|238629|
|238630|C+|238631|238632|名称:项目结构中的hello-test.c|238633|238634|JNI目录位置：AndroidProjects/TestNDK/app/src/main/jni|238635|238636|238637|IDE:+Android+Studio+0.8.1。|238638|entityMap^0|0|0|0|7|Q|10|2E|3J|1M|0|D|G|11|Y|0|4|C|V|V|0|0|0|7|J|0|8|7|0|0|0|0|9|C|0|0|8|14|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]|$1|C|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1E|8|@$G|1F|H|1G|I|J]|$G|1H|H|1I|I|J]|$G|1J|H|1K|I|J]]|9|@]|A|$]]|$1|K|3|L|5|F|7|1L|8|@$G|1M|H|1N|I|J]|$G|1O|H|1P|I|J]]|9|@]|A|$]]|$1|M|3|N|5|F|7|1Q|8|@$G|1R|H|1S|I|J]|$G|1T|H|1U|I|J]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|1V|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|1W|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1X|8|@$G|1Y|H|1Z|I|J]]|9|@]|A|$]]|$1|S|3|T|5|U|7|20|8|@$G|21|H|22|I|J]]|9|@]|A|$]]|$1|V|3|W|5|6|7|23|8|@]|9|@]|A|$]]|$1|X|3|Y|5|U|7|24|8|@]|9|@]|A|$]]|$1|Z|3|W|5|6|7|25|8|@]|9|@]|A|$]]|$1|10|3|11|5|U|7|26|8|@$G|27|H|28|I|J]]|9|@]|A|$]]|$1|12|3|W|5|6|7|29|8|@]|9|@]|A|$]]|$1|13|3|14|5|U|7|2A|8|@$G|2B|H|2C|I|J]]|9|@]|A|$]]|$1|15|3|-4|5|6|7|2D|8|@]|9|@]|A|$]]|$1|16|3|-4|5|6|7|2E|8|@]|9|@]|A|$]]|$1|17|3|18|5|6|7|2F|8|@]|9|@]|A|$]]|$1|19|3|-4|5|6|7|2G|8|@]|9|@]|A|$]]]|1A|$]]

I was having the same issue and these are some of the problems I had with my project:

<hr>

<ol>
<li>Changing from <code>System.load("hello-test");</code> into <code>System.loadLibrary("hello-test");</code>;</li>
<li>Changing the C function signature to <code>JNIEXPORT jstring Java_com_example_testndk_TestNDK_funcNami(JNIEnv* env, jobject thiz)</code>: here you use <code>Java_&lt;java_package_name&gt;_&lt;java-class-name&gt;_&lt;function-name&gt;</code>;</li>
<li>Adding NDK path to <code>local.properties</code>, in my case <code>ndk.dir=&lt;my-path-to-ndk-directory&gt;</code>; and</li>
<li>Updating my <code>build.gradle</code> to also include within <code>defaultConfig</code>: <code>ndk { moduleName "hello-test" }</code>.</li>
</ol>

<hr>

<ul>
<li>Package name: <code>com.example.testndk</code></li>
<li>Java class name: <code>TestNDK</code></li>
<li>C source name: <code>hello-test.c</code></li>
<li>JNI directory location within the project structure: <code>AndroidProjects/TestNDK/app/src/main/jni</code></li>
</ul>

<hr>

IDE: Android Studio 0.8.1.

blocks|key|3125201|text|之前的答案都没有解决我的问题，但这个答案解决了我的问题:一直以来，问题都是不存在必要的子目录和文件。我的libs文件夹中只有一个包含适当.so文件的armeabi文件夹，但应该还有另外三个文件夹，每个都有一个armeabi文件。还不确定其他三个(armeabi-v7a、mips或x86)中的哪一个是必需的，但我知道当我将Application.mk文件添加到与Android.mk文件相同的文件夹中时，这三个文件都是自动生成的，并确保其中包含以下行：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3125202|APP_ABI+:=+all|code-block|syntax|javascript|3125203|对我来说，这一行是其中唯一的文本。当运行ndk-build时，Application.mk文件显然会导致创建“所有”4个文件夹，并在其中创建适当的.so文件。一旦我准备好了Application.mk，我再次运行ndk-build，然后在重试之前对我的Eclipse项目进行了一次彻底的检查。一切都运行得很完美。|3125204|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

None of the previous answers solved my problem, but this did: All along the problem was that a necessary subdirectory and file were not present. All I had in my libs folder was an armeabi folder containing the proper .so file, but there are supposed to be 3 others, each with a .so file in them. Not certain yet which of the other three (armeabi-v7a, mips, or x86) was the required one, but I do know that all three were automatically generated when I added the Application.mk file to the same folder as the Android.mk file, and made sure it had the following line in it:

<pre><code>APP_ABI := all
</code></pre>

For me, that line is the only text in there. When ndk-build is then run the Application.mk file apparently causes "all" the 4 folders to be created and the proper .so files to be created in them. Once I got Application.mk in place, I ran ndk-build again, and then did a clean and a clear on my Eclipse project before trying again. Everything ran perfectly.

blocks|key|2910899|text|我刚刚遇到这种情况，问题是设备没有足够的空间来安装库。我卸载了一些其他的应用程序，然后它就起作用了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2910900|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I just had this happen and the problem was that the device simply did not have enough space to install the library. I uninstalled some other apps and then it worked.

blocks|key|3125214|text|首先，检查eclipse中的libs文件夹或android+studio中的jniLibs文件夹中是否有jni文件。当您检入任何svn时，交叉检查以检入.so文件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3125215|我的场景是使用Android+studio构建。|3125216|当你在android+studio中构建时，你的库.so文件或者(jni)文件应该在\src\main\jniLibs\armeabi***.so文件夹中。|3125217|这些文件将位于eclipse中的\libs\armeabi***.so中。|3125218|当同时使用eclipse和android+studio进行构建时，必须将build.gradle文件修改为|3125219|main+{
++++++++++++manifest.srcFile+'AndroidManifest.xml'
++++++++++++java.srcDirs+=+['src']
++++++++++++resources.srcDirs+=+['src']
++++++++++++aidl.srcDirs+=+['src']
++++++++++++renderscript.srcDirs+=+['src']
++++++++++++res.srcDirs+=+['res']
++++++++++++assets.srcDirs+=+['assets']

++++++++++++//+Fixed+Issue+:+"android+studio+java.lang.unsatisfiedlinkerror:+couldn't+load+find+library+returned+null"
++++++++++++//+Cause+:+For+android+studio+:+The+JNI+files+should+be+placed+in+the+/src/main/jniLibs+folder.
++++++++++++//+Fix+:+Mapping+the+jniLibs+'s+source+Directories+with+Lib's+folder
++++++++++++jniLibs.srcDirs+=+['libs']
}|code-block|syntax|javascript|3125220|在这里，我使用android+studio和eclipse构建项目。|3125221|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|U|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|V|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|W|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|X|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

First, check you have the jni files inside you libs folder in eclipse or jniLibs folder in android studio. When you checkin in any svn, cross check to check in the .so files too.

My Scenario was when Building with Android studio.

When you are building in android studio, your library .so files or (jni) files should be inside the \src\main\jniLibs\armeabi***.so folder.

where as these files will be inside the \libs\armeabi***.so in eclipse.

When building using both eclipse and android studio, you have to modify your build.gradle file as

<pre><code>main {
 manifest.srcFile 'AndroidManifest.xml'
 java.srcDirs = ['src']
 resources.srcDirs = ['src']
 aidl.srcDirs = ['src']
 renderscript.srcDirs = ['src']
 res.srcDirs = ['res']
 assets.srcDirs = ['assets']

 // Fixed Issue : "android studio java.lang.unsatisfiedlinkerror: couldn't load find library returned null"
 // Cause : For android studio : The JNI files should be placed in the /src/main/jniLibs folder.
 // Fix : Mapping the jniLibs 's source Directories with Lib's folder
 jniLibs.srcDirs = ['libs']
}
</code></pre>

Here I am building the project using both the android studio and the eclipse.

blocks|key|243618|text|通过"ndk_build“再次this.Build您的.so文件，可以解决UnsatisfiedLinkerror问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|243619|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

UnsatisfiedLinkerror is solved by this.Build your .so file again by "ndk_build"

blocks|key|3125230|text|我添加了|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3125231|extern+"C"|code-block|syntax|javascript|3125232|在函数声明之前|3125233|例如：|3125234|extern+"C"
jstring
Java_lara_myapplication_MainActivity_stringFromJNI(
++++++++++++JNIEnv+*env,
++++jobject+/*+this+*/)+{
++++std::string+hello+=+"Hello+from+C%2B%2B";
++++return+env->NewStringUTF(hello.c_str());
}|3125235|然后错误就消失了|3125236|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|U|8|@]|9|@]|A|$E|F]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

I added 

<pre><code>extern "C"
</code></pre>

before functions declare 
ex: 

<pre><code>extern "C"
jstring
Java_lara_myapplication_MainActivity_stringFromJNI(
 JNIEnv *env,
 jobject /* this */) {
 std::string hello = "Hello from C++";
 return env-&gt;NewStringUTF(hello.c_str());
}
</code></pre>

then the error was gone

blocks|key|238706|text|在gradle文件中添加以下代码|type|unstyled|depth|inlineStyleRanges|entityRanges|data|238707|//libs+is+the+location+of+your+library's+folder,+It+varies+in+diffarent+projects+like+src/main/libs+etc.
android+{
++sourceSets.main+{
++++jniLibs.srcDir+'libs'
++}
}|code-block|syntax|javascript|238708|因此，Android+Studio继续在jniLibs文件夹中寻找本地库。此代码将更改android+studio的路径以在libs文件夹中查找libs|238709|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Add this following code inside your gradle file

<pre><code>//libs is the location of your library's folder, It varies in diffarent projects like src/main/libs etc.
android {
 sourceSets.main {
 jniLibs.srcDir 'libs'
 }
}
</code></pre>

So, Android Studio keep on looking native libs inside jniLibs folder. this code will change the path of android studio to look libs in libs folder

blocks|key|243659|text|在我的例子中，.so库被正确加载，但找不到如下方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|243660|本机原因:+java.lang.UnsatisfiedLinkError:找不到本机方法...|243661|243662|在搜索了几个小时之后，注意到应用程序抛出了相关的错误，只是为了生产风格。是的，我们使用proguard来混淆源代码，它破坏了.so库处理程序类……在将以下代码行添加到proguard规则文件后。它开始像预期的那样工作。|243663|-keepclasseswithmembers,allowshrinking,allowoptimization+class+com.zk.android.jni.Device+{
native+<methods>;+}|code-block|syntax|javascript|243664|所以如果你使用proguard，并且和我的有类似的问题。请检查前置文件...|243665|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|R|8|@]|9|@]|A|$]]|$1|E|3|F|5|6|7|S|8|@]|9|@]|A|$]]|$1|G|3|H|5|I|7|T|8|@]|9|@]|A|$J|K]]|$1|L|3|M|5|6|7|U|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|O|$]]

In my case .so library is loaded correctly, but can not find method like below:
<blockquote>
Caused by: java.lang.UnsatisfiedLinkError: Native method not found...
</blockquote>
After hours of searching what can be problem noticed that application throws related error only for production flavor. Yes, we use proguard to obfuscate source code and it breaks .so library handler class... After adding below lines into proguard rules file. It started working as expected.
<pre><code>-keepclasseswithmembers,allowshrinking,allowoptimization class com.zk.android.jni.Device {
native &lt;methods&gt;; }
</code></pre>
So if you use proguard and having similar problem with mine. Please check proguard file...

Having the above error in your Android JNI app? Read on...

Up front, I'll say that I've already solved this, in my own way, but I feel something in the Android build system (perhaps regarding Eclipse) is broke, and I hope to save someone else hours of pain. Perhaps others have come across this issue and can comment on what worked for them.

For a while, I've had an Android project with some JNI code that I developed using the NDK. Then, today, I changed something in the java code and then poof, I could no longer load my JNI library. It failed with an exception like:

<blockquote>
 E/AndroidRuntime( 999): java.lang.UnsatisfiedLinkError: Couldn't load mylibrary: findLibrary returned null
</blockquote>

I googled and tried everything (rebuilding, close and relaunch Eclipse, etc, etc)

What finally fixed my problem? I physically uninstalled my app from the device before trying another run. That's it. After that, it worked. What worked for you?

Android NDK java.lang.UnsatisfiedLinkError: findLibrary returned null

在你的Android JNI应用程序中出现了上述错误？继续往下读。首先，我会说我已经用我自己的方式解决了这个问题，但是我感觉Android构建系统中的一些东西(可能是关于Eclipse)出了问题，我希望能省去别人几个小时的痛苦。也许其他人已经遇到了这个问题，并可以评论什么对他们有效。有一段时间，我有一个Android项...

问Android NDK java.lang.UnsatisfiedLinkError: findLibrary返回空
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