Error:Execution failed for task ':app:packageDebug'. > Duplicate files copied in APK META

Question

I want to send mail.I have added javax.activation.jar and javax.mail when i debug my application it show this error

Error:Execution failed for task ':app:packageDebug'.

Duplicate files copied in APK META-INF/LICENSE.txt File 1: E:\getImageContent\app\libs\javax.mail-1.4.4.jar File 2: E:\getImageContent\app\libs\javax.mail-1.4.4.jar

please help me

i think you have copy file inside lib as well gradle so it create duplication error. — Vishal Thakkar, Aug 05 '16 at 04:38
please don't use sir Iam just beginner. i have posted some steps try it — Vishal Thakkar, Aug 05 '16 at 04:51
add lines in your bulid.gradle Try my answer.... @SiluniUpeksha — Arjun saini, Aug 05 '16 at 05:38

score 0 · Answer 1 · edited May 23 '17 at 11:51

0

follow below steps:

1> Copy all three jar and add into lib folder.

2> add in gradle following code inside dependencies:

    compile files('libs/activation.jar')
compile files('libs/additionnal.jar')
compile files('libs/mail.jar')

for more info see this link: how to add external jar file in android studio

edited May 23 '17 at 11:51

Community

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answered Aug 05 '16 at 04:50

Vishal Thakkar

2,117
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score 0 · Answer 2 · answered Aug 05 '16 at 05:37

0

Add this in your app build.gradle

 packagingOptions {
    exclude 'META-INF/NOTICE.txt' // will not include NOTICE file
    exclude 'META-INF/LICENSE.txt' // will not include LICENSE file
}

answered Aug 05 '16 at 05:37

Arjun saini

4,223
3
23
51

Error:Execution failed for task ':app:packageDebug'. > Duplicate files copied in APK META

2 Answers2