Unable to resolve activity for: Intent

Question

I am having a problem in running Android unit test. I got this error when I tried to run a simple test.

Here's the log:

Blockquote java.lang.RuntimeException: Unable to resolve activity for: Intent { act=android.intent.action.MAIN flg=0x10000000 cmp=com.wsandroid.Activities/.SplashActivity } at android.app.Instrumentation.startActivitySync(Instrumentation.java:371) at android.test.InstrumentationTestCase.launchActivityWithIntent(InstrumentationTestCase.java:120) at android.test.InstrumentationTestCase.launchActivity(InstrumentationTestCase.java:98) at android.test.ActivityInstrumentationTestCase2.getActivity(ActivityInstrumentationTestCase2.java:87) at com.wsandroid.test.activity.TestEULA.setUp(TestEULA.java:15) at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:169) at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:154) at android.test.InstrumentationTestRunner.onStart(InstrumentationTestRunner.java:430) at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1447)

This error occurs for Android less than 2.2. It works fine for Android 2.2 emulator. Yet Android 2.2 emulator has a bug of sending a key twice even though we only press it one. Application to be tested runs on Android 2.2 platform.

Appreciate if anyone of you can help me.

Dzung.

Answer 1

This can also be cause by a missing

Make sure you have a corresponding entry in your manifest.

<activity android:name=".SplashActivity"  ...

Answer 2

I had a similar problem with a simple test project for an app that was just a splash screen. I found that I had implemented the constructor wrong. My initial implementation of the constructor was this...

public SplashScreenTest(){
    super("com.mycomp.myapp.SplashScreen", SplashScreen.class);
}

After some beating my head against the wall, I somehow decided to remove the SplashScreen from the pkg argument of super(). My successful implementation is now like this...

public SplashScreenTest() {
    super("com.mycomp.myapp", SplashScreen.class);
}

I hope that this helps you or others solve the problem.

Answer 3

Try to check your Manifest.xml file:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.tablet.test"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">

    <uses-library android:name="android.test.runner" />
    </application>
    <uses-sdk android:minSdkVersion="8" />
    <!-- This line below! -->
    <instrumentation android:targetPackage="com.tablet.tablet"
    android:name="android.test.InstrumentationTestRunner" /> 
</manifest> 

You need to check the following line:

<instrumentation android:targetPackage="com.tablet.tablet"
android:name="android.test.InstrumentationTestRunner" /> 

So the targetPackage must be the same as in your code.

Answer 4

I had specific similar problem while using the AndroidAnnotations lib.

Later, I found out it was due to forgetting to use the generated class (MyActivity_ instead of MyActivity).