appium: Unable to install appium1.6

I am trying to install appium with following command , it gives error npm install -g appium@beta

Error Log:-

C:\>npm install -g appium@beta
npm WARN engine appium@1.6.0-beta3: wanted: {"node":">=4","npm":">=3"} (current: {"node":"4.4.7","npm":"2.15.8"})
npm WARN optional dep failed, continuing fsevents@1.0.14
npm WARN engine punycode@2.0.0: wanted: {"node":">=6"} (current: {"node":"4.4.7","npm":"2.15.8"})
npm WARN peerDependencies The peer dependency request@^2.34 included from request-promise will no
npm WARN peerDependencies longer be automatically installed to fulfill the peerDependency
npm WARN peerDependencies in npm 3+. Your application will need to depend on it explicitly.
npm WARN deprecated babel-core@5.8.24: Babel 5 is no longer being maintained. Upgrade to Babel 6.
npm WARN peerDependencies The peer dependency request@^2.34 included from request-promise-core will no
npm WARN peerDependencies longer be automatically installed to fulfill the peerDependency
npm WARN peerDependencies in npm 3+. Your application will need to depend on it explicitly.

> appium-windows-driver@0.2.0 install C:\Users\prabu\AppData\Roaming\npm\node_modules\appium\node_modules\appium-windows-driver
> node install-npm.js

module.js:327
    throw err;
    ^

Error: Cannot find module 'core-js/library/fn/symbol'
    at Function.Module._resolveFilename (module.js:325:15)
    at Function.Module._load (module.js:276:25)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (C:\Users\prabu\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\core-js\symbol.js:1:93)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Module.require (module.js:353:17)
npm WARN deprecated minimatch@2.0.10: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated line-numbers@0.2.0: Copy its ~20 LOC directly into your code instead.
|
> appium-chromedriver@2.9.2 install C:\Users\prabu\AppData\Roaming\npm\node_modules\appium\node_modules\appium-android-driver\node_modules\appium-chromedriver
> node install-npm.js

Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module 'core-js/library/fn/get-iterator'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module 'core-js/library/fn/get-iterator'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module 'core-js/library/fn/get-iterator'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module 'core-js/library/fn/get-iterator'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module 'core-js/library/fn/get-iterator'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module 'core-js/library/fn/get-iterator'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module 'core-js/library/fn/get-iterator'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
Error trying to install Chromedriver binary. Waiting and trying again. Cannot find module '../modules/web.dom.iterable'
info Chromedriver Install Installing Chromedriver version '2.21' for platform 'win' and architecture '32'
info Chromedriver Install Opening temp file to write chromedriver_win32 to...
info Chromedriver Install Downloading http://chromedriver.storage.googleapis.com/2.21/chromedriver_win32.zip...
info Chromedriver Install Writing binary content to C:\Users\prabu\AppData\Local\Temp\2016912-5620-nza4ph\chromedriver_win32.zip...
info Chromedriver Install Extracting C:\Users\prabu\AppData\Local\Temp\2016912-5620-nza4ph\chromedriver_win32.zip to C:\Users\prabu\AppData\Local\Temp\2016912-5620-nza4ph\chromedriver_win32
info Chromedriver Install Creating C:\Users\prabu\AppData\Roaming\npm\node_modules\appium\node_modules\appium-android-driver\node_modules\appium-chromedriver\chromedriver\win...
info Chromedriver Install Copying unzipped binary, reading from C:\Users\prabu\AppData\Local\Temp\2016912-5620-nza4ph\chromedriver_win32\chromedriver.exe...
info Chromedriver Install Writing to C:\Users\prabu\AppData\Roaming\npm\node_modules\appium\node_modules\appium-android-driver\node_modules\appium-chromedriver\chromedriver\win\chromedriver.exe...
info Chromedriver Install C:\Users\prabu\AppData\Roaming\npm\node_modules\appium\node_modules\appium-android-driver\node_modules\appium-chromedriver\chromedriver\win\chromedriver.exe successfully put in place

> appium-selendroid-driver@1.4.3 install C:\Users\prabu\AppData\Roaming\npm\node_modules\appium\node_modules\appium-selendroid-driver
> node ./bin/install.js

dbug AndroidDriver Getting Java version
info AndroidDriver Java version is: 1.8.0_101
ERR! Selendroid Could not find Java's 'jar' executable on your PATH. Please ensure it is present and try running install again

> appium-uiautomator2-driver@0.0.2 install C:\Users\prabu\AppData\Roaming\npm\node_modules\appium\node_modules\appium-uiautomator2-driver
> node ./bin/install.js

dbug AndroidDriver Getting Java version
info AndroidDriver Java version is: 1.8.0_101
info UiAutomator2 downloading UiAutomator2 Server APKs
WARN UiAutomator2 UiAutomator2 Server APKs downloaded, but MD5 hash did not match, please be careful
WARN UiAutomator2 fs.md5(UI2_SERVER_APK_PATH):80db0e40c100d73fa4d9ab6543d82b22
WARN UiAutomator2 fs.md5(UI2_TEST_APK_PATH):e1a161b4f2e0c874e2f75a8d7a74d7b1
npm ERR! Windows_NT 10.0.14393
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "appium@beta"
npm ERR! node v4.4.7
npm ERR! npm  v2.15.8
npm ERR! code ELIFECYCLE

npm ERR! appium-windows-driver@0.2.0 install: `node install-npm.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the appium-windows-driver@0.2.0 install script 'node install-npm.js'.
npm ERR! This is most likely a problem with the appium-windows-driver package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node install-npm.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs appium-windows-driver
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!
npm ERR!     npm owner ls appium-windows-driver
npm ERR! There is likely additional logging output above.
npm ERR! Windows_NT 10.0.14393
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "appium@beta"
npm ERR! node v4.4.7
npm ERR! npm  v2.15.8
npm ERR! path C:\npm-debug.log.4261822169
npm ERR! code EPERM
npm ERR! errno -4048
npm ERR! syscall open

npm ERR! Error: EPERM: operation not permitted, open 'C:\npm-debug.log.4261822169'
npm ERR!     at Error (native)
npm ERR!  { [Error: EPERM: operation not permitted, open 'C:\npm-debug.log.4261822169']
npm ERR!   errno: -4048,
npm ERR!   code: 'EPERM',
npm ERR!   syscall: 'open',
npm ERR!   path: 'C:\\npm-debug.log.4261822169' }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.

npm ERR! Please include the following file with any support request:
npm ERR!     C:\npm-debug.log