Default activity not found in my android studio

Question

I have created a new project in android studio and when i am trying to run it ,it is saying default activity not found.i have checked my manifest file this does not contain any problem. there is a Red X Mark android studio application while running

go to your Edit Configuration and take a screenshot of that, maybe there's something off about your Launch Options. — TWL, Nov 30 '18 at 22:02
I would try to rebuild the Projekt. Please coment the output of the Logcat. — , Apr 18 '19 at 12:10

score 16 · Answer 1 · edited Jun 20 '20 at 09:12

16

Exit Android Studio.

Go to path > C:\Users\YOUR_WINDOW_USER_NAME\.AndroidStudio3.3\system

Remove /caches folder.

Make sure

you have defined Launcher activity in Manifest file for one Activity
you have set the default activity from Configurations
you have set the selected activity from Configurations.

edited Jun 20 '20 at 09:12

Community

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answered Apr 13 '19 at 05:49

pooja jardosh

289
2
4

works perfectly. + i removed other caches folder or temp folder too. – Abhishek Garg Apr 18 '19 at 08:39
1

Yes; Restarting android studio by selecting "Invalidate catches and Restart" from file menu works sometimes. – pooja jardosh May 13 '19 at 07:00
Perfect answer <3 – jojo Jun 25 '19 at 12:33
"Invalidate caches and Restart" didn't work. This did! – John T Jul 17 '20 at 08:06
This is the one that works for me after upgrading to ver. 4. Thank you very much! – Konayuki Aug 13 '20 at 06:26

score 4 · Answer 2 · answered Dec 02 '18 at 12:21

4

There is a work around to make it work that worked for me.

1- Select Edit Configurations from the drop down next to run button.

2- Under launch options > Launch select Specified activity.

3- Another field "Activity" will appear select your default activity.

4- Click OK and sync project with gradle files and it should work.

answered Dec 02 '18 at 12:21

Mohammed Fareed

91
7

i have follwed these steps but that does not work .i have got solution of my problem that i uninstall android studio and reinstall it now it is working fine. – priya kushwah Dec 02 '18 at 15:05

score 2 · Answer 3 · answered Aug 14 '20 at 15:27

two Method for solving this problem

Method 1.make sure that default activity is define in your manifest

Method 2. even default activity is define but not solved than go to your manifest file click on merged Manifest at bottom left side of your manifest file and you will see the side drawer menu of your manifest file you will see the error and from there you can solved your error by click on suggestion.

score 1 · Answer 4 · edited Jul 24 '19 at 02:57

Check the manifest file and under the activity tags make sure it has:

<application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".Activity_name Here"
            android:label="@string/app_name" >
            <intent-filter>

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

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

Make sure that the line containing the action android:name= "android.intent.action.MAIN" is included in the activity tag of the application.

Also make sure that activity name is corresponding to the android:name of the activity.

score 0 · Answer 5 · answered Nov 30 '18 at 11:58

0

Try to check this code..

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

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

answered Nov 30 '18 at 11:58

check main activity set layout – Nov 30 '18 at 12:04
also restart again android studio – Nov 30 '18 at 12:04

score 0 · Answer 6 · answered Jun 01 '19 at 17:25

0

Check whether your Launcher activity intent filter has this

tools:node="remove"

If yes, remove it and error will be resolved. This piece of code will be used when we are having flavors in our project structure, in-order to remove a Launcher activity.

Else, Two launcher icons will be installed.

answered Jun 01 '19 at 17:25

Kanagalingam

2,096
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Can you please be specific about where it would be found? – Anon Jul 20 '20 at 15:28
Check in your Android Manifest file. – Kanagalingam Jul 21 '20 at 05:44

score -1 · Answer 7 · answered Dec 02 '18 at 16:13

-1

i have resolved this issue by changing the location of android studio from program files to program filesx86

answered Dec 02 '18 at 16:13

priya kushwah

29
1
1
6

Default activity not found in my android studio

7 Answers7