install Exception device not found ANDROID

Question

After

• increasing the timeout period
• trying kill server and start server commands
• restarting avd
• recreating avd
• restarting the application
• restarting the system

---

I'm still getting :

Failed to install DataAttach.apk on device 'emulator-5554': device not found
com.android.ddmlib.InstallException: device not found
Launch canceled!

What can be done in this case?
I'm running this app on Emulator (Android version 4.0)

Edit
Apps doesn't have any issues as far as code is concerned. Still they are showing error about device not found exception.

Answer 1

I was also getting the same error, but to my surprise the application was installed correctly and I could launch the application. I am sending this reply just to let you know guys if you want to check and see if your application was actually installed along with this error.