I am also hitting this error when I try to run my app on android. The app crashes right after fetching the js bundle. Running on iOS has no problems.

Even checking out older versions of my app that are deployed and working in production still does not fix the issue, I simply cannot run android! Strangely, one of my co-workers has no problems running android. Also, if I react-native init a brand new project it also has no problems running on android. I'm completely mystified as to what could be going on.

I've included logcat output if that helps. It appears to be hitting the same error as described by @tuneZola :

02-27 23:08:42.546  1721  1747 E AndroidRuntime: FATAL EXCEPTION: AsyncTask #2
02-27 23:08:42.546  1721  1747 E AndroidRuntime: Process: com.chillinmobile, PID: 1721
02-27 23:08:42.546  1721  1747 E AndroidRuntime: java.lang.RuntimeException: An error occurred while executing doInBackground()
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at android.os.AsyncTask$3.done(AsyncTask.java:309)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at java.util.concurrent.FutureTask.run(FutureTask.java:242)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at java.lang.Thread.run(Thread.java:818)
02-27 23:08:42.546  1721  1747 E AndroidRuntime: Caused by: java.lang.IllegalAccessError: Method 'void android.support.v4.net.ConnectivityManagerCompat.<init>()' is inaccessible to class 'com.facebook.react.modules.netinfo.NetInfoModule' (declaration of 'com.facebook.react.modules.netinfo.NetInfoModule' appears in /data/app/com.chillinmobile-1/base.apk)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at com.facebook.react.modules.netinfo.NetInfoModule.<init>(NetInfoModule.java:55)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at com.facebook.react.shell.MainReactPackage.createNativeModules(MainReactPackage.java:67)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at com.facebook.react.ReactInstanceManagerImpl.processPackage(ReactInstanceManagerImpl.java:793)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at com.facebook.react.ReactInstanceManagerImpl.createReactContext(ReactInstanceManagerImpl.java:730)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at com.facebook.react.ReactInstanceManagerImpl.access$600(ReactInstanceManagerImpl.java:91)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at com.facebook.react.ReactInstanceManagerImpl$ReactContextInitAsyncTask.doInBackground(ReactInstanceManagerImpl.java:184)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at com.facebook.react.ReactInstanceManagerImpl$ReactContextInitAsyncTask.doInBackground(ReactInstanceManagerImpl.java:169)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at android.os.AsyncTask$2.call(AsyncTask.java:295)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    at java.util.concurrent.FutureTask.run(FutureTask.java:237)
02-27 23:08:42.546  1721  1747 E AndroidRuntime:    ... 4 more

I am also hitting this error

I found this issue only after I updated com.android.support:appcompat-v7 from 23.1.1 to 23.2.0 in app/build.gradle

@pdiaz Interesting! I had com.android.support:appcompat-v7:23.0.1 listed in my app/build.gradle dependencies. I tried updating that to 23.1.1 to see if that would help resolve my issue, but unfortunately I am still getting the crash caused by the IllegalAccessError

@pdiaz I noticed that also with the support version update, but I didn't want to have a specific build version dependency. Most people have something like this in there dependency list "com.android.support:support-v4:23.+". Also, this is an issue that will start to show up for more people once they upgrade or use RN for the first time. Changing to a specific build version is just a temporary solution.

I has same problem when i upgrade android support package to 23.2

+1 Tried with android support package v23.1 & v23.2

cc @bestander

The issue is that the ConnectivityManagerCompat constructor is now private in version 23.2

Oh snap, I'll look into that tomorrow

+1 same issue here

Has anyone been able to fix the issue by changing their version of the android support package? I cannot get around the issue no matter which version I use (23.0.1, 23.1, 23.2)

@Traviskn No, I was not able to fix it either by specifying those earlier version. I did a gradle clean, but it still seems to import the new version. I think its because I have other dependencies like the FB SDK that always imports the latest.

If you are using the react-native-dialogue module the material-dialogue dependency will not compile without support v23.2. (all their tags point to the latest commit).

to property downgrade your support version download this https://dl-ssl.google.com/android/repository/support_r23.0.1.zip and extract it into $ANDROID_HOME/extras/android/support

One temporary fix you can do is exclude the package from your other dependencies in your app/gradle.build. This is an example of ours.

dependencies {
    // INCLUDE THE SUPPORT VERSION YOU WANT TO USE
    compile "com.android.support:support-v4:23.0.1"
    // EXCLUDE IT FROM THE REST
    compile fileTree(dir: "libs", include: ["*.jar"])
    compile ( project(':RNWebView') ) { exclude module: 'support-v4' }
    compile ( project(':Orientation') ) { exclude module: 'support-v4' } 
    compile ( project(':react-native-google-analytics-bridge') ) { exclude module: 'support-v4' }
    compile "com.facebook.react:react-native:0.18.+"
    compile ( "com.facebook.android:facebook-android-sdk:4.+" ) {
        exclude module: 'bolts-tasks'
        exclude module: 'bolts-applinks'
        exclude module: 'support-v4'
    }
}

You should be able to go to your android folder and run

./gradlew app:dependencies

and all of the support packages should be listed as version 23.0.1. You might have to be a clean before that.

@Anthonyzou we don't instantiate ConnectivityManagerCompat, so constructor visibility should not make a difference.
But anyway, I am debugging this

Looks like it is a breaking change in android support library.
We don't have capacity to fix this right now, a Pull Request with a fix that would work both for 23.1 and 23.2 would be very much appreciated.
Otherwise please post / vote on it at https://productpains.com/product/react-native. This way the most important issues for the community get surfaced.

@tuneZola Using a resolutionStrategy is a cleaner approach to force the version across all sub-projects.

subprojects {
  configurations.all {
    resolutionStrategy {
      // https://github.com/facebook/react-native/issues/6152
      force 'com.android.support:support-v4:23.0.1'
    }
  }
}

Should be fixed with 3640080

Closing based on @astuetz's comment. Let's reopen of its still not working

@astuetz @satya164 This is great news! Do you know what version of react native that fix will be available in?

@Traviskn It's fixed in 0.22.0-rc already :)

@knowbody I think the fix for this Android-specific bug should be included in the 0.22.0-rc release notes as well. (Although the commit message doesn't really sound like a major bugfix)

@astuetz done

This gives me a lot of compilation errors:

Error:(11, 26) error: cannot find symbol class LifecycleState
Error:(33, 34) error: cannot find symbol method onPause()
Error:(42, 34) error: cannot find symbol method onResume(ReactActivity,ReactActivity)
Error:(51, 34) error: cannot find symbol method onDestroy()
Error:(95, 43) error: cannot find symbol variable LifecycleState
Error:Execution failed for task ':app:compileDebugJavaWithJavac'.

Compilation failed; see the compiler error output for details.

Trying:

"dependencies": {
    "react": "^0.14.8",
    "react-native": "^0.37.0"
  }

followed by

rm -rf node_modules/ && npm install

Then a project refresh, then a build. I get the same errors.

Essentially, the process lined out in this doc is broken I believe... Unless maybe I need to update react version number too? (Which comes back to what I was saying earlier about a table of compatible version numbers)

@LiamInJapan New package name for LifecycleState class: com.facebook.react.common.LifecycleState

Thanks @ishan-dhingra

I still have these:

Error:(33, 34) error: cannot find symbol method onPause()
Error:(42, 34) error: cannot find symbol method onResume(ReactActivity,ReactActivity)
Error:(51, 34) error: cannot find symbol method onDestroy()
Error:Execution failed for task ':app:compileDebugJavaWithJavac'.

@LiamInJapan This seems to be a Compile time Java error, check if you are extending class and overriding function properly.

Ok, I'll check (although this is what is in the documents... Actually come
to think of it I think I know what it is)

On Wed, Nov 16, 2016 at 6:26 PM, Ishan Dhingra notifications@github.com
wrote:

@LiamInJapan https://github.com/LiamInJapan This seems to be a Compile
time Java error, check if you are extending class and overriding function
properly.

—
You are receiving this because you were mentioned.
Reply to this email directly, view it on GitHub
#6152 (comment),
or mute the thread
https://github.com/notifications/unsubscribe-auth/ABlM9y5Jjw-25LxmDODzomMkRKwTSAfXks5q-sxTgaJpZM4HjE37
.

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So replacing with onHostPause, onHostResume e.t.c. gets it compiling, though there is a strikethrough on these function names (deprecated?).

Then I get a "Seem's you're trying to access 'ReactNative.Component' from the 'react-native' package "throwOnWrongReactAPI" exception...

Again these are using samples from the documentation... I am following the instructions now

Ok I am finally at Hello World, though I think this is the longest "Hello World" I've ever experienced.

I still have the depreciated issue mind regarding the onHostXXXX functions (onDestroy e.t.c. don't work) which makes me think I still have a versioning issue:

"dependencies": {
    "react": "^15.3.2",
    "react-native": "^0.37.0"
  }

compile 'com.android.support:appcompat-v7:23.0.1'
compile 'com.facebook.react:react-native:0.37.0'

Any advice appreciated!

I am facing the same issue. Can someone help?

I've solved the problem changing In my project's build.gradle file what follows
maven {
// All of React Native (JS, Android binaries) is installed from npm
url "$rootDir/../node_modules/react-native/android"
}
in
maven {
// All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
url "/MyAbsolutePathToTheApplicationRoot/node_modules/react-native/android"
}

Then you have to solve some compiling errors related to the OnPause, OnResume...that are changed in onHostPause, onHostResume and that's it. A pain in the ass anyway!

@StefanoCremona I was able to get rid of the error with this, however when I run the app I get

java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.RuntimeException: Could not connect to development server.

I did this adb reverse tcp:8081 tcp:8081, even then it's not working. Did you come across this?

"dependencies": { "react": "^0.14.7", "react-native": "^0.26.2" }

02-09 19:44:03.409 12389-12475/com.kenny.embedded E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #1 Process: com.kenny.embedded, PID: 12389 java.lang.RuntimeException: An error occurred while executing doInBackground() at android.os.AsyncTask$3.done(AsyncTask.java:321) at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354) at java.util.concurrent.FutureTask.setException(FutureTask.java:223) at java.util.concurrent.FutureTask.run(FutureTask.java:242) at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:246) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) at java.lang.Thread.run(Thread.java:833) Caused by: java.lang.UnsatisfiedLinkError: could find DSO to load: libreactnativejni.so at com.facebook.soloader.SoLoader.loadLibraryBySoName(SoLoader.java:213) at com.facebook.soloader.SoLoader.loadLibrary(SoLoader.java:178) at com.facebook.react.bridge.JSCJavaScriptExecutor.<clinit>(JSCJavaScriptExecutor.java:25) at com.facebook.react.bridge.JSCJavaScriptExecutor$Factory.create(JSCJavaScriptExecutor.java:20) at com.facebook.react.ReactInstanceManagerImpl$ReactContextInitAsyncTask.doInBackground(ReactInstanceManagerImpl.java:183) at com.facebook.react.ReactInstanceManagerImpl$ReactContextInitAsyncTask.doInBackground(ReactInstanceManagerImpl.java:169) at android.os.AsyncTask$2.call(AsyncTask.java:307) at java.util.concurrent.FutureTask.run(FutureTask.java:237) at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:246)  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)  at java.lang.Thread.run(Thread.java:833) 

Excuse me? Thank you !

I solved this problem by using the complete maven path in the app's build.gradle.

I had put this maven path in the Projects build.gradle before by mistake. Putting it into app's build.gradle worked.

I am also hitting this error

app gradle

 compileSdkVersion = 25
 buildToolsVersion = "24.0.3"
 compile 'com.android.support:appcompat-v7:23.0.1'
 complie 'com.android.support:support-v4:23.0.1'
 compile "com.facebook.react:react-native:+" // From node_modules.

package.json

"dependencies": {
    "react": "^15.4.2",
    "react-native": "^0.41.0"
  }

keep the supportV7 version with the compileSdkVersion version

I'm hitting this with React Native 0.41.2, I don't have a appcompat-v4 dependency in my build.gradle file, I do have:

compile 'com.android.support:appcompat-v7:23.3.0'

ah, but one of my dependencies uses:

compile 'com.android.support:support-v4:22.2.1'

@NoTraceOfSnow I can't implement ReactApplication as it is not found - using compile "com.facebook.react:react-native:+" // From node_modules.

Am I missing something?

"dependencies": {
    "react": "^15.4.2",
    "react-native": "^0.41.2"
}

compileSdkVersion 25
buildToolsVersion "24.0.3"

compile 'com.android.support:appcompat-v7:25.1.1'
compile 'com.android.support:support-v4:25.1.1'

@haemi your project has download this about the reactnative file? i have a good idea ,you can init a Official project ,View all files and you can find difference in the project,copy the difference file to you self project.if you can improt reactnative in you project you can link me , i will try my beast .my QQ email 2371479117@qq.com and you project has this picture files

@NoTraceOfSnow thanks for your quick response! I can import React into my project, I also have the node_modules folder with it's subfolders. But when I want to show my ReactNative-Activity, I get the error from above (java.lang.IllegalAccessError: Method 'void android.support.v4.net.ConnectivityManagerCompat.<init>()').

Then I wanted to try what you wrote here (#6152 (comment)), but I can't do the implements ReactApplication...

@haemi eee.... do you start your server? and i think you lost some file .
this is the office project ,i think you can see the office project file one by one.wish you success

is this in build.gradle correct?

allprojects {
    repositories {
        ...
        maven {
            // All of React Native (JS, Android binaries) is installed from npm
            url "$rootDir/../node_modules/react-native/android"
        }
    }
    ...
}

shouldn't it be ReactAndroid at the end? I do not have a react-native/android directory...

so sorry i am sleep last night ,yes,you should it be . i will tell you how to lead reactnative into your project.


you should find the data.txt with you appgridle diffrence and copy in you project
data.txt
and you must keep version like this picture


Wish you success

I suspect this is caused by gradle picking up the wrong version of react-native,
see PR here: #14743