Kotlin在android上：找不到主合并清单.是什么导致这个错误？

Error:Execution Failed for task ':app:generateDebugInstantRunAppInfo'.
> CAnnot find main merged manifest.

这是清单文件：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://scheR_418_11845@as.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>

谢谢你的帮助！