Cannot successfully specify runtimeExecutable in launch.json

[Harley Lin]

Is there a way to locate an absolute path to the browser executable, I am using chromebook. 

Google Chrome 86.0.4240.77 (Official Build) (64-bit) 

Executable Path /opt/google/chrome/chrome 

Profile Path /home/chronos/u-

I tried "runtimeExecutable": "/opt/google/chrome/chrome", 

always show :

unable to launch browser: "Unable to find Chrome version stable. Available auto-discovered versions are: ["dev"]. You can set the "runtimeExecutable" in your launch.json to one of these, or provide an absolute path to the browser executable."