Android Studio: Unknown failure: Exception occurred while executing:

I've researched articles on this and nothing seems to work. I am trying to run the code with an emulator. All the data is wiped on the emulator.

When i run the code on the emulator I get an error:

When I click OK. I get this error:

I am unsure how to get rid of this message. Any help?

Things done so far:

• Android : App not installed
• Also have changed package details
• Change Android Package

Did you tried below steps -

• Turn off Instant Run feature from settings(File ~> Settings ~> Build, Execution, Deployment).

• Perform a clean build.

• Turn on Instant Run feature from settings.

• Perform a clean build.

• Invalidate Cache/ Restart from menu option

Note :- If you have any device connected with system then disconnect first.