Reputation: 81

Android Application Error while running the Application

Whenever I try running my application - this window in the screenshot is popping up in my screen. Stating that default activity is not found because of this I am not able to deploy my app:

Manifest file of my code

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

    <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="android3.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".MainActivity2"
            android:label="@string/app_name" >

        </activity>
        <activity
            android:name=".Sigin"
            android:label="@string/app_name" >
        </activity>
    </application>

</manifest>

This is what the window which I am getting while clicking the Run-> Edit Congiguration:

Gradle file of my code:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "19.1.0"

    defaultConfig {
        applicationId "com.example.mcs.oodoeg"
        minSdkVersion 16
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

        packagingOptions {
            exclude 'META-INF/LICENSE'
            exclude 'META-INF/NOTICE'
            exclude 'META-INF/DEPENDENCIES'
        }

}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile files('libs/xmlrpc-client-3.1.3.jar')
    compile files('libs/gson-2.2.2.jar')
}

Upvotes: 1

Answers (11)

Leonid Ivankin

Reputation: 667

All the answers above didn't help me. Renaming the activity worked for me. For example, ErrorActivity threw this error. ErrActivity - no.

Upvotes: 0

Learning Always

Reputation: 1561

Restart your IDE.
Clean your project, goto Build > Clean Project.
Run again and see if your error is resolved.

Go to Run > Edit configuration and check this detail. Check this image

Upvotes: 1

Sana Ebadi

Reputation: 7210

just find the application on your phone and Uninstall it.

and Clean the app and run it again.

Upvotes: 0

Andrea Leganza

Reputation: 477

In my case the problem was due to the emulator which started in "safe mode" making impossible to run on the device, changing emulator device worked.

Upvotes: 0

kyrie

Reputation: 21

it's studio setting problem. please click app => Edit Configrations => Deploy. select Default apk and apply.after click ok

Upvotes: 2

Shoaib Mushtaq

Reputation: 615

It's working perfectly for me after clicking on settings => Apps & notification => App info => find the name of the app => on top right corner click on the three dots => Uninstall for all users.

Upvotes: 4

Ahmed Al-hajri

Reputation: 67

I solved the issue by uninstalling the app on my device for other user.

when you run the app on your device installation will happen for every user on your device
uninstalling the app only uninstall it for the current user you are using on the device

Upvotes: 1

Sokdara Cheng

Reputation: 21

I faced the same problem.

Solved by going to the other user account on my phone and uninstall the app. Seems this problem is caused by first installing this app on "A" user account then we uninstall this app in "B" account. So when we try to run our app again in "B" account the old app is still exist in "A" account.

Upvotes: 1

user3568896

Reputation: 97

The error occurs when you delete the app when you are still testing it on your phone. The app shows as deleted because it disappears from your launcher, To fully delete the app follow the steps below.

It worked perfectly after clicking on settings => Apps & notification => App info => find the name of the app => on top right corner click on the three dots => Uninstall for all users.

Upvotes: 6