session app error launching an activity - how to fix that?

Question

I have following error while installing app on real devices and emulator.

session-app-error-launching-activity-in-android-studio

I have tried below links but nothing comes

Even after creating new project, this error will come out.

1. Session 'app': Error Launching activity
2. Session app: Error launching Activity in Android Studio 3.Android Studio: Session 'app': Error Launching activity 4.Error while Launching activity 5.Session 'app': Error Launching activity in Android Studio 3.1.3

Here is my manifest file code

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.efunhub.neworganicveg">

<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">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

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

  </manifest>

screenshot of Edit Configuration window

Thanks in advance.

Answer 1

Go to File -> Invalid cache/ Restart trying doing it hope it works.

Answer 2

A better solution instead of disabling instant run. Remove the .idea folder and .gradle folder, then click button sync project with gradle files, after this process finished, you are able to run your app as normal.

Good Luck~