Unable to run espresso tests - ComponentInfo not found for android.support.test.runner.AndroidJUnitRunner

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What steps will reproduce the problem?
1. depend on --
    androidTestCompile 'com.android.support.test:runner:0.2'
    androidTestCompile 'com.android.support.test.espresso:espresso-core:2.0'
2. add gradle android plugin config --
    android {
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    ...
    }
3. In Android Studio, Add a run configuration for Android Test with test runner 
"android.support.test.runner.AndroidJUnitRunner" and set project module.

What is the expected output? What do you see instead?

I expected tests to run but instead I am getting an error message: 
Running tests
Test running startedTest running failed: Unable to find instrumentation info 
for: 
ComponentInfo{com.netflix.nts.samurai.mediaclient.test/android.support.test.runn
er.AndroidJUnitRunner}
Empty test suite.

What version of the product are you using? On what operating system?
Android Studio 1.1.0 on Mac OS 10.10.3
Java version "1.8.0_05" 64-Bit Server VM
Target SDK 22

Please provide any additional information below.
This issue started happening since I changed to espresso-core:2.1 and now 
happens even when I changed my dependency version back to espresso-core:2.0. I 
have tried ./gradle clean but still doesn't help.

Original issue reported on code.google.com by mshu...@netflix.com on 24 Apr 2015 at 7:13

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Original comment by nkors...@google.com on 5 May 2015 at 5:32

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Hi there,

It's not the first time I see this problem after changing dependencies and it 
usually only happens from Android Studio. It looks like a problem with the 
Gradle plugin but it's hard to reproduce.

First, change back to espresso-core:2.1 and execute 
./gradlew clean connectedCheck 

from command line.

Original comment by jalc@google.com on 6 May 2015 at 10:54

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Hi,
Getting same issue here with same config, but I'm setting up espresso 2.2 from 
scratch on the same module as the app project. I'm trying to run a sample test 
and I get this: 

Test running started 
Test running failed: Unable to find instrumentation info for: 
ComponentInfo{test/android.support.test.runner.AndroidJUnitRunner}
Empty test suite.

My environment is:
Android Studio 1.2.2 on a Mac
jdk1.7
gradle 2.2.1
target sdk 22

dependencies:
test runner:0.3
espresso-contrib:2.2
espresso-core:2.2

Original comment by fernanda...@gmail.com on 26 Jun 2015 at 4:32

[GoogleCodeExporter]

Just adding the dependency espresso-contrib:2.2 to a working test caused the 
"Empty test suite" issue.

The following dependency definition solved the issue:
androidTestCompile('com.android.support.test.espresso:espresso-contrib:2.0') {
   exclude group: 'com.android.support', module: 'support-annotations'
   exclude group: 'com.android.support', module: 'appcompat'
   exclude group: 'com.android.support', module: 'support-v4'
   exclude module: 'recyclerview-v7'   
}

Thanks to elcolto at StackOverflow: http://stackoverflow.com/a/30715011/4137032

Original comment by pamtb...@gmail.com on 9 Sep 2015 at 2:25

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Original comment by slinz...@google.com on 15 Sep 2015 at 10:58

• Added labels: Component-Test-Support-Libraries