Error: Default Activity Not Found

Question

I upgraded IntelliJ Idea 12.0.4 to 12.10.

Now all the modules in my Android project give the error:

Error: Default Activity Not Found

I reverted to 12.0.4 and it works.

Any ideas ?? I think it might be related to some plugins not being installed cause the only other thing could have been a local config but I deleted the configuration folder to confirm and that didn't change anything.

Answer 1

Invalidate Caches / Restart

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After that, your app must be run!

Answer 2

If you are working on a widget app this solution should work for you:

1. Go to Edit Configuration
2. Set Launch Option to nothing

Answer 3

Edit androidmanifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.java2">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivityName">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Answer 4

@TouchBoarder almost had it. Although selecting "Do not launch Activity" results in nothing launching.

In Android Studio under Run/Debug Configuration -> Android Application -> General -> Activity -> select the option "Launch:"

Choose your Activity. This doesn't exactly fix the intended behaviour but rather overrides it correctly.

Answer 5

If you see that error occur after upgrading versions of IntelliJ IDEA or Android Studio, or after Generating a new APK, you may need to refresh the IDE's cache.

File -> Invalidate Caches / Restart...

Answer 6

You app have launch activity default?

possibly this could be your mistake

Step 1: Select Edit Configurations

Step 2: watch this warning: Default Activity not found

Step 3: select a default activity

Step 3: Save your changes and finish

Good Luck