I am a complete nOOb to Android programming and trying my hands at it for the first time by going through the tutorials. The problem is that I have created multiple emulator
I think your problem is that your application emulator doesn't start because of your RAM storage, maybe you need to create a device with very low resolution.
I had this problem with a emulator running Android with API Level 14. I solved it by reducing the memory, the emulator uses. At the beginning it was set to about 1 GB and when I set it to 256MB everything was fine.
First Solution
Go to your source project file and remove these files and folders
.gradle/
.idea/
.iml/
build
Then close and reopen your project. After that try to build and run.
Second solution
Tools -> AVD Manager -> select your virtual device -> right click -> Wipe data
I have recently the same issue in emulator, Nexus 5 (Android O). I have go to Android Virtual Device Manager and Wipe User Data and it solved my Problem.