Multiple dex files define Lorg/apache/cordova/BuildHelper

user_8176450 0
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I'm in trouble since yesterday. In my internship I faced the following build error, but I couldn't understand why :

$ cordova build android

[...]

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.dex.DexException: Multiple dex files define Lorg/apache/cordova/BuildHelper;

* 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: 3.379 secs
Error: /home/thor/Projects/App_CDP/platforms/android/gradlew: Command failed with exit code 1 Error output:
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.dex.DexException: Multiple dex files define Lorg/apache/cordova/BuildHelper;

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

Here is the output of cordova plugins list, I don't have the support-v4/v13 conflict as you can see :

$ cordova plugin list
com.googlemaps.ios 2.2.0-fixed "Google Maps SDK for iOS"
com.moust.cordova.videoplayer 1.0.1 "Video Player"
cordova-plugin-camera 2.4.1 "Camera"
cordova-plugin-compat 1.1.0 "Compat"
cordova-plugin-console 1.0.5 "Console"
cordova-plugin-device 1.1.4 "Device"
cordova-plugin-facebook4 1.9.1 "Facebook Connect"
cordova-plugin-file 4.0.0 "File"
cordova-plugin-file-transfer 1.6.3 "File Transfer"
cordova-plugin-geolocation 2.4.3 "Geolocation"
cordova-plugin-googlemaps 1.4.0 "phonegap-googlemaps-plugin"
cordova-plugin-inappbrowser 1.7.1 "InAppBrowser"
cordova-plugin-splashscreen 4.0.3 "Splashscreen"
cordova-plugin-statusbar 2.2.2 "StatusBar"
cordova-plugin-whitelist 1.3.1 "Whitelist"
ionic-plugin-keyboard 2.2.1 "Keyboard"
{}

Here are also some more informations:

$ cordova -v
7.0.1

$ ionic -v
2.1.4
ionic-framework cordova build android
17 Answers

Most likely you are using the newly released cordova-android@6.3.0, which now includes BuildHelper.java (as noted in your error message) and PermissionHelper.java, but you still have the deprecated cordova-plugin-compat in your project which is causing the build to fail because it also contains these classes.

To fix this, remove cordova-plugin-compat from your project to uninstall these Java files from the cordova-android platform project::

cordova plugin rm cordova-plugin-compat --force

Update

To persist this change add cordova-plugin-compat@1.2 which includes an engine constraint to prevent the Java files being re-installed into the cordova-android@6.3+ platform:

cordova plugin add cordova-plugin-compat@1.2

Another update (copypasted from comments)

After removing and adding cordova-plugin-compat@1.2, instead of removing and adding entire Android platform you can only remove files BuildHelper.java and PermissionHelper.java from folder platforms/android

user_7772650

Going to add my 2 cents since none of the solutions work for me. Only thing that worked for me:

cordova plugin rm cordova-plugin-compat --force
cordova platform rm android
cordova platform add android@6.3.0
user_7496570

I had to do:

cordova plugin rm cordova-plugin-compat --force
cordova plugin add cordova-plugin-compat@1.2
cordova platform rm android
cordova platform add android@6.3.0

considering you can't simply remove cordova-plugin-compat because plugins like cordova-plugin-file depend on it.

user_36407020

One solution: downgrade cordova android platform @6.2.3

$ cordova platform remove android && cordova platform add android@6.2.3

user_58325470

I'am using for Ionic 3 Project, I have to do:

ionic cordova plugin rm cordova-plugin-compat --force
ionic cordova plugin add cordova-plugin-compat@1.2
ionic cordova platform rm android
ionic cordova platform add android@6.3.0

it's work for me.

user_74466930

With my Ionic 3 project it was enough to run:

ionic cordova plugin rm cordova-plugin-compat --force
ionic cordova plugin add cordova-plugin-compat@1.2

And then run a build again. No need to remove and add the platform.

user_44698930

i had the same error, and i didn't have compat plugin in my plugins, i just run that code, then i built, it worked fine 

$ cordova platform remove android && cordova platform add android@6.2.3
user_31232280
user_101386370

I confirm that Answer by DaveAlden Works !!

But in the plugin.xml inside the cordova-plugin-compat I had a syntax error with less than sign '<', because it's illegal in xml.

This issue appears in visual studio, and you can't install plugin with the config manager because it detects this syntax error in xml on the plugin resource.

You must install with command line like DaveAlden says.

Ignore errors, And after install replace :

<engine name="cordova-android" version="<6.3.0"/>

by

<engine name="cordova-android" version="&lt;6.3.0"/>

And compilation run at the end!! :)

user_89077670

I have remove the Compat plugin after the update the dependency of other plugins; like Camera to the new version and it's work. Example: cordova plugin rm cordova-plugin-camera --save cordova plugin add cordova-plugin-camera@latest --save Post the new plugin addition the old version 2.3.0 was replaced with 4.0.2 for Camera plugin.

after this step. I have simply remove the plugin "Compat" cordova plugin rm cordova-plugin-compat --force

user_42518230

On Resume. This mean that plugin-camera is not compatible with the last version of android oreo

user_83659420

I am using Ionic 4 and this solved it for me (only takes a few seconds to run):

cordova clean
user_26842430

There may be mismatch of the plugins in the android builds. So better run 2 commands for successful build

cordova platform rm android
cordova platform add android

After wasted 2 days this seems to be only working solutions for me.

user_6969160

None of the above solutions worked for me. For me the solution was upgrading gradle. I was using gradle 5.6.2. Updating to 5.6.4 then removing and adding my android platform and plugins did the trick. 

brew upgrade gradle

Install / upgrade gradle on Mac OS X

rm -rf plugins/*

cordova platform rm android

cordova platform add android
user_99099410
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