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I have this error:

Error:Error converting bytecode to dex: Cause: com.android.dex.DexException: Multiple dex files define Lcom/google/android/gms/common/api/zza;

I am not getting how to solve this, please help.

!!

I don't know whether to include some lib or what

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Raghav Sharma
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2 Answers2

2

you need to use same version of firebase dependencies

compile 'com.google.firebase:firebase-auth:9.0.2'
compile 'com.google.firebase:firebase-database:9.0.2'

or

 compile 'com.google.firebase:firebase-auth:9.6.1'
 compile 'com.google.firebase:firebase-database:9.6.1'
AskNilesh
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1

The problems of Multiple dex files define usually arise when you have duplicate dependency entry in your app build.gradle. In this case, you have a duplicate Firebase dependencies.

You need to use the same version either 9.0.2 or 9.6.1:

compile 'com.google.firebase:firebase-auth:9.0.2'
compile 'com.google.firebase:firebase-database:9.0.2'

or

compile 'com.google.firebase:firebase-auth:9.6.1'
compile 'com.google.firebase:firebase-database:9.6.1'

Please be aware that if you use some support library version like 24.0.0 there is a chance for compatibility issue with firebase. You need to use the latest of support library or find the compatible firebase version. Read more at android error while compiling com.android.support:support-v4:24.0.0

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