Kotlin on android: Cannot find main merged manifest. What is causing this error?

Question

I wanted to give Kotlin a shot. I converted my java classes to Kotlin and corrected some errors. If I try to build, the following error comes up:

Error:Execution failed for task ':app:generateDebugInstantRunAppInfo'. Cannot find main merged manifest.

This is the manifest file:

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="mdrueke.kniffel">      <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=".MainActivity"             android:label="@string/app_name"             android:theme="@style/AppTheme.NoActionBar"             android:windowSoftInputMode="adjustPan">          </activity>         <activity android:name=".Setup_Activity"             android:windowSoftInputMode="adjustPan">             <intent-filter>                 <action android:name="android.intent.action.MAIN" />                  <category android:name="android.intent.category.LAUNCHER" />             </intent-filter>         </activity>     </application>  </manifest> 

Thanks for your help!

Answer 1

I’ve been experimenting with Kotlin development in the just-released Android Studio 3.0 Canary 1 and get the “Cannot find merged manifest” error every now and again. I’ve found that selecting Build -> Clean Project solves the problem for me.