Jacoco with Gradle 0.10.0: Remote object doesn't exist

Question

UPDATE Oct 21, 2014: The issue has been confirmed as fixed by using buildtools 21.

UPDATE SEPT 18, 2014: The issue's status has been updated to FutureRelease.

UPDATE: I have heard that this may not work with Dagger, and since Espresso uses Dagger, it might be causing some issues. A bug was submitted to the Gradle team.

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Google recently updated their Gradle implementation to 0.10.0. One of the things they now offer is Jacoco support. To do this, they mention setting the following:

testCoverageEnabled = true

Into your build type. Now when I run my Espresso tests (using connectedCheck), I get an error right as I start to run the :connectedAndroidTest task that states:

Tests on HTC One - 4.2.2 - API 17 - 1080x1920 - 4.2.2 failed: Instrumentation run failed due to 'java.lang.VerifyError'
01:38:31 E/Device: Error during Sync: Remote object doesn't exist!
null
java.io.IOException: com.android.ddmlib.SyncException: Remote object doesn't exist!
at com.android.builder.testing.ConnectedDevice.pullFile(ConnectedDevice.java:114)
at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:158)
at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:42)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.android.ddmlib.SyncException: Remote object doesn't exist!
at com.android.ddmlib.SyncService.pullFile(SyncService.java:314)
at com.android.ddmlib.Device.pullFile(Device.java:849)
at com.android.builder.testing.ConnectedDevice.pullFile(ConnectedDevice.java:107)
... 8 more
:connectedAndroidTest FAILED

Here are the parts I have changed in the build.gradle file:

buildscript {
    dependencies {
        classpath 'com.android.tools.build:gradle:0.10.+'
        ...
    }
    ...
}

android {
    buildTypes {
        debug {
            testCoverageEnabled = true
            ...
        }
        ....
    }
    ...
}

Is there any other piece of build.gradle file that I need to update in order to get Jacoco working?

The error mentions that a "remote object" doesn't exist. Usually I attribute this to the emulator being out of sync and a restart would fix it. But I've tried that and it isn't worked either. Any ideas what the error is trying to tell me?

Answer 1

Try This One...

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.13.0'
    }
}

repositories {
    mavenCentral()
}
apply plugin: 'com.android.application'
apply plugin: 'jacoco'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.1" // Must Require

    defaultConfig {
        applicationId "com.packagename" <Change it>
        minSdkVersion 11
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"

    }

    packagingOptions {
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/services/javax.annotation.processing.Processor'
    }

    lintOptions {
        abortOnError false
    }

    buildTypes {
        debug {
            testCoverageEnabled true
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
}

jacoco {
    toolVersion = "0.7.1.201405082137"
}