Unable to add fcm plugin in ionic app

I am trying to add fcm plugin in my project but it shos following error

ionic cordova plugin add cordova-plugin-fcm
> cordova plugin add cordova-plugin-fcm --save
Error: Failed to fetch plugin file:node_modules/cordova-plugin-fcm via registry.
Probably this is either a connection problem, or plugin spec is incorrect.
Check your connection and plugin name/version/URL.
Error: cmd: Command failed with exit code 4294963238 Error output:
npm ERR! addLocal Could not install F:\PROJECTS\IONIC2\foodJunctionMobileApp\node_modules\cordova-plugin-fcm
npm ERR! Windows_NT 10.0.16299
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "file:node_modules/cordova-plugin-fcm" "--production" "--save"
npm ERR! node v6.9.5
npm ERR! npm  v3.10.10
npm ERR! path F:\PROJECTS\IONIC2\foodJunctionMobileApp\node_modules\cordova-plugin-fcm
npm ERR! code ENOENT
npm ERR! errno -4058
npm ERR! syscall open

npm ERR! enoent ENOENT: no such file or directory, open 'F:\PROJECTS\IONIC2\foodJunctionMobileApp\node_modules\cordova-plugin-fcm'
npm ERR! enoent ENOENT: no such file or directory, open 'F:\PROJECTS\IONIC2\foodJunctionMobileApp\node_modules\cordova-plugin-fcm'
npm ERR! enoent This is most likely not a problem with npm itself
npm ERR! enoent and is related to npm not being able to find a file.
npm ERR! enoent

npm ERR! Please include the following file with any support request:
npm ERR!     F:\PROJECTS\IONIC2\foodJunctionMobileApp\npm-debug.log

[ERROR] An error occurred while running cordova plugin add cordova-plugin-fcm --save (exit code 1).

here is my

ionic info

cli packages: (C:\Users\Rohit\AppData\Roaming\npm\node_modules)

    @ionic/cli-utils  : 1.19.0
    ionic (Ionic CLI) : 3.19.0

global packages:

    cordova (Cordova CLI) : 7.1.0

local packages:

    @ionic/app-scripts : 3.1.6
    Cordova Platforms  : android 6.3.0
    Ionic Framework    : ionic-angular 3.9.2


    Android SDK Tools : 25.2.5
    Node              : v6.9.5
    npm               : 3.10.10
    OS                : Windows 10

Environment Variables:

    ANDROID_HOME : C:\Users\Rohit\AppData\Local\Android\sdk


    backend : pro

I am connected to the internet so that is not the problem. I added plugin for login with google plus I think may be it is conflicting but not sure. kindly help if anyone knows about it. Thank you.