"Launching Game Failed" | Minecraft Launching Process | MacOS

So I was attempting to launch Minecraft and when in the process of pressing play, after loading it came up to a small screen saying... 

"

ERROR
Launching the game failed
Unable to locate the Java runtime.
Error details: Undefined error: 0
Filename on disk:
Path: .
Exists: Directory
"

 

I do not know how to fix it, I tried for quite some time going into terminal. Image below...