Can't upload Android app to device (stale dexed jars)

Question

I am using Android Studio to develop this app, and today when I tried to upload it to my device to test I got a popup window saying:

Installation fail

Answer 1

Go to AVD Manager, then in the action section of your device select wipe data. This worked for me, hope it helps....

Answer 2

None of answer didn't solve my problem

you should also make progaurd for debug too. just add buildtypes to your main gradle file:

buildTypes {
    debug {  // change release to debug
        minifyEnabled true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
    }
}

Answer 3

This worked for me:

In Android Studio this can be done by clicking on Build > Clean Project. SysadminTips

Answer 4

In my case was because my emulator was full of apps. I saw how much space the emulator had and was almost nothing so I deleted some apps and with this my problem was resolved

Answer 5

What i did was modified build.gradle (Module:app) file.

Initially it was

buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}

I changed it to

    buildTypes {
    release {
        minifyEnabled true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}

Then Rebuild and deploy !

Answer 6

This helped me for the emulator: Close Emulator. Tools > AVD Manager > Select Emulator Settings > Wipe Data > Cold Boot.. Now Install App.

Reference