
This error will cause when your app lose define of your main activity, mostly is because you removed part of your main activity code from AndroidManifest.xml
file.
Here is a sample of how your main activity class should be defined in AndroidManifest.xml
file.
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
If you cross check your AndroidManifest.xml
with sample code above most probably you will realize that there is shorter code in
<intent-filter>
section both action
and category
tags are required to define main activity.
- Last updated 4 years ago
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