':app:transformDexArchiveWithExternalLibsDexMergerForDebug' error after adding firebase auth plugin in flutter

Question

I am getting some errors after installing the firebase_auth plugin and updating the other firebase plugin versions. I tried some solutions including do

Answer 1

Upgrade your whole firebase plugins as new

Answer 2

Man i had a problem like this just one day ago. This is probably conflict between support library and androidx in your dependencies. Take a look at this issue. In my case i solve this manually removing all dependencies from my project in pubspec and add one by one with new updated version that already use androidx and migrate my project too. Well i try IDE androidX migration tool but without success. Finally be aware with thrid part libraries some of them take a time to update and create problems like this.

Answer 3

I had same problem and i updated as follows

compile 'com.google.firebase:firebase-core:11.0.4'
compile 'com.google.firebase:firebase-auth:11.0.4'
compile 'com.google.firebase:firebase-messaging:11.0.4'

to

implementation 'com.google.firebase:firebase-core:16.0.0'
implementation 'com.google.firebase:firebase-auth:16.0.1'
implementation 'com.google.firebase:firebase-messaging:17.0.0'

Check latest version and update accordingly https://firebase.google.com/support/release-notes/android

Answer 4

I ended up fixing my error by following this: https://github.com/flutter/flutter/issues/27128#issuecomment-457918930

Here's some other notes:

1. When updating the distributionUrl in gradle-wrapper.properties I used 4.10.2. Your version might be different depending when you do this I'm guessing.
2. If you can't find the "Sync Project with Gradle Files" command follow this Not able to sync dependency in build.gradle in flutter