Activity not started, its current task has been brought to the front

Question

I have a very simple android project. I got the following error message when I try to run it. The emulator is running but the application doesn\'t come up. I couldn\'t find

Answer 1

On the emulator,

• press "Home"
• "Menu" button -> scroll through the list and select the app which you are running
• press "Force Stop".

Answer 2

If you get this warning it means you haven't changed any line of your code and this instance of your project is running on emulator or on your device. So if you want to run that again you can:

1- Make some changes in your code and then compile it again.

2- Or you can easily close the app and then relaunch it with eclipse or android studio or ...

If the problem still persist try to uninstall the app and run it again.

Answer 3

I've seen this before - you want to re-run your app even though you may not have made any code changes. On the emulator, click the back button (to the right of the menu button) and then run your app as usual from Eclipse.

Answer 4

Project > Clean and then start your emulator again.

Answer 5

It is not an error message, it is a warning. What the system is trying to tell you: The application on the device is the same as your application in Eclipse. And because the application is already running on the device, the system tells you that it is not going to kill and restart it, but bring the activity of your already running app into the foreground. This is pretty normal. ;-)

The warning will not continue if you edit your code and run it (because the app is then killed, reinstalled and started) or if you kill your process on the phone, e.g. via the DDMS.

Answer 6

I found eclipse somehow got into a state where it was not building a new apk, even with code changes. Deleting the apk:

rm ./bin/"YOUR APP NAME".apk

and re-running your app from eclipse fixes the problem.