Android apk install failed Not found Activity

Question

Android Version: 7.0 (Nougat)

Hi,

I'm beginner developers on mobile in Android. I had a problem on 04.21. This problem is ‘Not found Activity’ and I need help in understanding it.

I'm experiencing the issue by following this flow:

New Project ‘A’ created in Android Studio;
Build a project and run the app on an Android device (Galaxy Note5, Galaxy Note4, etc.);
Verify the app is running successfully;
Remove the app from the device;
Find app-debug.apk file in project directory (e.g.: A/app/build/outputs/apk/app-debug.apk);
I’m move the .apk file from Notebook to device and install the .apk on the device using: adb install app-debug.apk
Check the app's complete installation on the device;
App crashes due to NotFound MainActivity.java files error, found in the log.

I've found a quick fix to my issue, by adding the following:

jackOptions, gradle 
    jackOptions {
     enabled true
    }

But now, I have no idea why the above snipped in fixing my problem. Can someone please help me debug this issue, or find a workaround to my problem?

Thanks!

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

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

Possible duplicate http://stackoverflow.com/questions/19122386/activity-declaration-in-androidmanifest-xml — Виталий Махнев, May 22 '17 at 05:03
Possible duplicate of [Activity Declaration in AndroidManifest.xml](http://stackoverflow.com/questions/19122386/activity-declaration-in-androidmanifest-xml) — Blasanka, May 22 '17 at 05:08
@AbdulKawee Just run project then find apk on outputs/apk/.apk file — Park, May 22 '17 at 05:19
may be error is because of you are making .apk in the wrong way — Abdul Kawee, May 22 '17 at 05:22
@Beginner Developer Please try to add full path to your activity. For ex. You package name is com.example then in your manifest file you give full path to your activity com.example.MainActivity then try it works for me. — Andy Developer, May 22 '17 at 05:26
If were you known other ways that make apk file please tell me — Park, May 22 '17 at 05:27
@BeginnerDeveloper checkl the answer below, it has the procedure of generating apk — Abdul Kawee, May 22 '17 at 05:28

score 0 · Answer 1 · answered May 22 '17 at 05:02

0

Have you checked the manifest file and define your main Activity.

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

answered May 22 '17 at 05:02

Juliyanage Silva

2,529
1
21
33

sorry, already added to code. This project is New Project I'm not modified – Park May 22 '17 at 05:03

score 0 · Accepted Answer · answered May 22 '17 at 05:26

0

Try this

GoTo>>Build>>Generate Signed APK

Now you will have a form like this

Click on Create new, and create key store for your apk

Fill out the form as in the picture. And use these credentials to generate signed .apk

Like this, Hope it solves your problem, Follow the link if you want to know the more details

answered May 22 '17 at 05:26

Abdul Kawee

2,687
1
14
26

Sorry.. Generate Signed APK failed install and a little different answer flow just moment please :) – Park May 22 '17 at 06:40
@BeginnerDeveloper yeah sure , share the details – Abdul Kawee May 22 '17 at 06:54

score 0 · Answer 3 · answered May 22 '17 at 09:21

0

It doesn't look like a problem. Are you sure the adb installation has been successful? Maybe you need to pack the release version,the debug version can run directly ,and the installation may need to be signed.

answered May 22 '17 at 09:21

yeyuzhou

11
1

Android apk install failed Not found Activity

3 Answers3