Android - Cannot build

[demiro]

So I have installed the package and linked it and when building I get this

:app:dexDebug
Unknown source file : UNEXPECTED TOP-LEVEL EXCEPTION:
Unknown source file : com.android.dex.DexException: Multiple dex files define Landroid/support/v7/appcompat/R$anim;
Unknown source file : at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:596)
Unknown source file : at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:554)
Unknown source file : at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:535)
Unknown source file : at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:171)
Unknown source file : at com.android.dx.merge.DexMerger.merge(DexMerger.java:189)
Unknown source file : at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:502)
Unknown source file : at com.android.dx.command.dexer.Main.runMonoDex(Main.java:334)
Unknown source file : at com.android.dx.command.dexer.Main.run(Main.java:277)
Unknown source file : at com.android.dx.command.dexer.Main.main(Main.java:245)
Unknown source file : at com.android.dx.command.Main.main(Main.java:106)

:app:dexDebug FAILED

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':app:dexDebug'.

  com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.8.0_92\bin\java.exe'' finished with non-zero exit value 2

I checked all the android files as suggested for manual link and they are all there (except for extra permissions needed - which I aded)

I opened the android sdk and updated...

but still the issue persists

[marcshilling]

I'm in the middle of updating the package.

npm install react-native-image-picker@latest. Refer to the updated README

[marcshilling]

Also, nothing in your stack trace indicates any issue with this particular package

[demiro]

Ran from the android studio which warned me there are some problems with the version of gradle?

anyways... after fixing that I ran the build again which produced:

• What went wrong:
  Execution failed for task ':react-native-image-picker:processReleaseResources'.

  java.io.IOException: Could not delete folder C:\DEVEOPMENT\tCoach\mobile-app\node_modules\react-native-image-picker\android\build\generated\source\r\release\android\support\v7

I did install the latest before.... if you are in the middle of updating I will wait :)

[demiro]

reinstalled the latest, working now!

[imalbert]

I'm getting this too. @demiro do you recall what problems you fixed with gradle and how? It seems that is the cause of this problem.

[demiro]

@imalbert : I don't know much about android studio, but it offered me at the time to auto-fix it for me (guess it installed some missing dependencies and updated)

[imalbert]

I don't use android studio myself as well. Has it been working well since the fix?

@marcshilling I see this build problem on react-native 0.24 and 0.27. Yet if I run react-native-image-picker example it runs perfectly. Do you have any ideas about this?

[demiro]

It works OK

[imalbert]

Hi, running cd android && ./gradlew clean fixed the problem for me. I found it here

[matdehaast]

@imalbert that worked for me aswell. Thanks

[Ashu-Shah]

@imalbert Thank you soo much man....

[LannyCodes]

@imalbert running cd android && ./gradlew clean fixed my problem,Thanks!

[ogie-va]

thanks! this worked for me cd android && gradlew clean

[MadGeorge]

For me it does not work after cd android && gradlew clean.

$ yarn add react-native-image-picker@latest --save
...
yarn add v1.3.2

react-native link
...
Linking assets to android project 
Assets have been successfully linked to your project

iOS build is ok, but android still failed.

[RajaSaravanan]

#882
It worked!

[Usamashahid76]

It works:

android{
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}

[engineerbaraazakariya]

For me on Ubuntu I used:
cd android && gradle clean
hope it helps.