installation failed since the device possibly has stale dexed jars that don't match the current version (dexopt error)

Question

I am unable to run app from android studio to my samsumg phone running android 2.3.6. I am getting Application installation Failed popup refer below screenshot.

Answer 1

In case it's an Android Emulator giving you a "stale dexed" message, this helped for me on a Mac:

1. stop emulator
2. cd ~/.android/avd/[emulator name].avd
3. rm *.lock
4. wipe emulator
5. start emulator

Answer 2

This usually happens because your device doesn't have enough space in memory.

Delete some apps and try again