rollbackFailedOptional: verb npm-session 9a5b1fb467359b45

I am beginner in React.js and I am trying to Install react through npm BUT i am stuck on an Error.

The Problem

When i try to install npm install react then node server is stuck on [..................] - rollbackFailedOptional: verb npm-session 9a5b1fb467359b45 .

When i type this :-

    > npm config rm proxy
    > npm config rm https-proxy

nothing happens in Terminal

What have i tried ?

1). I have also tried This. BUT this didn't work for me.

EDIT

After some time it is showing fetchMetadata: sill resolveWithNewModule react@17.0.1 checking installable status

Any help would be appreciated.

Thank You in Advance.

from rollbackFailedOptional: verb npm-session 9a5b1fb467359b45