Unable to execute dex: Multiple dex files define Landroid/support/v7/appcompat

Question

I am getting below exception when I try to run my project:

[2014-09-29 11:56:32 - Dex Loader] Unable to execute dex: Multiple dex files define Landroid/support/v7/appcompat/R$anim;
[2014-09-29 11:56:32 - PageViewers] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Landroid/support/v7/appcompat/R$anim;

You are using library project with your main project..if this is the case then you have to use same jar in both the projects. — Meenal, Sep 29 '14 at 04:03
possible duplicate of [Unable to execute dex: Multiple dex files define Lcom/myapp/R$array;](http://stackoverflow.com/questions/7870265/unable-to-execute-dex-multiple-dex-files-define-lcom-myapp-rarray) — Code-Apprentice, Sep 29 '14 at 04:05
A quick google search with your error message gave me that link... — Code-Apprentice, Sep 29 '14 at 04:05
Run gradle -q dependencies to generate a dependency report. You should see where v7 is coming from and also post your gradle file — williamj949, Sep 29 '14 at 06:45

score 2 · Answer 1 · edited Aug 29 '15 at 19:08

2

you have twice compat library

So, how I solved this problem:

Import support library as a project from "sdk/extras/android/support/v7/appcompat".
Reference library in your project (for Eclipse, "Properties - Android - Add").
Build projects (for Eclipse, "Projects - Build All"). Make sure, you have "android.support.v7.appcompat" in your main project gen folder.
If it doesn't worked - clean and rebuild project.

edited Aug 29 '15 at 19:08

JesusFreke

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answered Jun 01 '15 at 17:59

Adnan Abdollah Zaki

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it works. Make sure, you have "android.support.v7.appcompat" in your main project gen folder. Helps me. – RBK Sep 26 '15 at 18:19

score 1 · Answer 2 · answered Dec 22 '17 at 08:50

1

I tried a lot but finally I solved it by executing

cd android && ./gradlew clean

refer github issue.

answered Dec 22 '17 at 08:50

Sidharth Taneja

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Unable to execute dex: Multiple dex files define Landroid/support/v7/appcompat

2 Answers2