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I tried to run the react-native run-android through my React Project. After that, I got an error like the following.

  Starting JS server...

Building and installing the app on the device (cd android && gradlew.bat installDebug...



FAILURE: Build failed with an exception.



* What went wrong:

A problem occurred configuring project ':app'.

> Could not resolve all dependencies for configuration ':app:_debugCompile'.

   > Could not find com.android.support:appcompat-v7:23.0.1.

     Searched in the following locations:

         file:/C:/Users/DELL/.m2/repository/com/android/support/appcompat-v7/23.0.1/appcompat-v7-23.0.1.pom

         file:/C:/Users/DELL/.m2/repository/com/android/support/appcompat-v7/23.0.1/appcompat-v7-23.0.1.jar

         https://jcenter.bintray.com/com/android/support/appcompat-v7/23.0.1/appcompat-v7-23.0.1.pom

         https://jcenter.bintray.com/com/android/support/appcompat-v7/23.0.1/appcompat-v7-23.0.1.jar

         file:/F:/Android/react/AwesomeProject/node_modules/react-native/android/com/android/support/appcompat-v7/23.0.1/appcompat-v7-23.0.1.pom

         file:/F:/Android/react/AwesomeProject/node_modules/react-native/android/com/android/support/appcompat-v7/23.0.1/appcompat-v7-23.0.1.jar

     Required by:

         AwesomeProject:app:unspecified

         AwesomeProject:app:unspecified > com.facebook.react:react-native:0.27.2

   > Could not find com.android.support:recyclerview-v7:23.0.1.

     Searched in the following locations:

         file:/C:/Users/DELL/.m2/repository/com/android/support/recyclerview-v7/23.0.1/recyclerview-v7-23.0.1.pom

         file:/C:/Users/DELL/.m2/repository/com/android/support/recyclerview-v7/23.0.1/recyclerview-v7-23.0.1.jar

         https://jcenter.bintray.com/com/android/support/recyclerview-v7/23.0.1/recyclerview-v7-23.0.1.pom

         https://jcenter.bintray.com/com/android/support/recyclerview-v7/23.0.1/recyclerview-v7-23.0.1.jar

         file:/F:/Android/react/AwesomeProject/node_modules/react-native/android/com/android/support/recyclerview-v7/23.0.1/recyclerview-v7-23.0.1.pom

         file:/F:/Android/react/AwesomeProject/node_modules/react-native/android/com/android/support/recyclerview-v7/23.0.1/recyclerview-v7-23.0.1.jar

     Required by:

         AwesomeProject:app:unspecified > com.facebook.react:react-native:0.27.2

   > Could not find com.android.support:support-v4:23.1.1.

     Searched in the following locations:

         file:/C:/Users/DELL/.m2/repository/com/android/support/support-v4/23.1.1/support-v4-23.1.1.pom

         file:/C:/Users/DELL/.m2/repository/com/android/support/support-v4/23.1.1/support-v4-23.1.1.jar

         https://jcenter.bintray.com/com/android/support/support-v4/23.1.1/support-v4-23.1.1.pom

         https://jcenter.bintray.com/com/android/support/support-v4/23.1.1/support-v4-23.1.1.jar

         file:/F:/Android/react/AwesomeProject/node_modules/react-native/android/com/android/support/support-v4/23.1.1/support-v4-23.1.1.pom

         file:/F:/Android/react/AwesomeProject/node_modules/react-native/android/com/android/support/support-v4/23.1.1/support-v4-23.1.1.jar

     Required by:

         AwesomeProject:app:unspecified > com.facebook.react:react-native:0.27.2 > com.facebook.fresco:fresco:0.10.0 > com.facebook.fresco:drawee:0.10.0

         AwesomeProject:app:unspecified > com.facebook.react:react-native:0.27.2 > com.facebook.fresco:fresco:0.10.0 > com.facebook.fresco:imagepipeline:0.10.0

         AwesomeProject:app:unspecified > com.facebook.react:react-native:0.27.2 > com.facebook.fresco:fresco:0.10.0 > com.facebook.fresco:imagepipeline:0.10.0 > com.facebook.fresco:imagepipeline-base:0.10.0



* Try:

Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.



BUILD FAILED



Total time: 17.502 secs

Could not install the app on the device, read the error above for details.

Make sure you have an Android emulator running or a device connected and have

set up your Android development environment:

https://facebook.github.io/react-native/docs/android-setup.html

I installed Android SDK and set Android Home and Path Environmental Variable successfully. But I am still getting the same error.

I also installed Gennymotion on my pc for creating virtual android device.

You might check the permissions on Android/Gradlew
They should be 755 not 644.

Run chmod 755 android/gradlew inside your app root folder.

Then run react-native run-android.

And it should work again.

Fixed the error with the following in .bash_profile

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_171.jdk/Contents/Home

export PATH=$PATH:$JAVA_HOME/bin

export ANDROID_HOME=/Users/saif-ams/MyFiles/applications/androidsdk

export PATH=$PATH:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools

In this React Native AwesomeProject tutorial the author notes that the project's Android Studio build version may have to be updated in the project's build.gradle file.

If you are using the newest version of Android Studio you may have to do that too if your tutorial is a bit older.

Find your project's build.gradle file which should be located in AwesomeProjectandroidapp folder.

In build.gradle file find buildToolsVersion "23.0.1" and change to buildToolsVersion "23.0.3"

Note that there may be another "23.0.1" string in your file but that is for the Android support version and should stay unchanged.

I just had this problem as well. It was a permission problem in the project folder. I solved this with:

sudo chown -R nomeDoUsuario AwesomeProject

I just revoked permissions and re-accepted them again. It sounds silly, I know, but I also tried other options first, until I saw that Cordova did not recognize my device either. I just unplugged my cell phone to go from school to my home. I hope that for some it can be solved that easily.

1. Open Android Studio


2. Open anyproject or create an empty project


3. Find Action (CMD + SHIFT + A) type: AVD Manager


4. Hit enter to open AVD Manager


5. click the little Pencil icon (Edit this AVD)



6. click on change (we need Android 6 (23) over there)
   




7. then select Android 6 (23) and click OK
   




8. Now click on PLAY button next to Edit (pencil), and keep the emulator running




9. Now open Terminal, cd TO_YOUR_PROJECT
   and then type: react-native run-android

ref: https://facebook.github.io/react-native/docs/getting-started.html