Ionic2 Not Working on my proxy server

Hello,
I am getting error while use

ionic start --v2 ionic2 tabs

I already set proxy using set proxy=http://xxx.xxx.xxx.xxx:xx

Error Log

C:\Users\58690>ionic start --v2 ionic2 tabs
Creating Ionic app in folder C:\Users\58690\ionic2 based on tabs project
Downloading: https://github.com/driftyco/ionic2-app-base/archive/master.zip
[=============================] 100% 0.0s
Downloading: https://github.com/driftyco/ionic2-starter-tabs/archive/master.zip
[=============================] 100% 0.0s
Installing npm packages…
npm WARN peerDependencies The peer dependency @angular/tsc-wrapped@* included fr
om @ionic/app-scripts will no
npm WARN peerDependencies longer be automatically installed to fulfill the peerD
ependency
npm WARN peerDependencies in npm 3+. Your application will need to depend on it
explicitly.
npm WARN peerDependencies The peer dependency rxjs@* included from @ionic/app-sc
ripts will no
npm WARN peerDependencies longer be automatically installed to fulfill the peerD
ependency
npm WARN peerDependencies in npm 3+. Your application will need to depend on it
explicitly.
npm WARN optional dep failed, continuing fsevents@1.0.17
/

node-sass@3.10.1 install C:\Users\58690\ionic2\node_modules@ionic\app-scripts
\node_modules\node-sass
node scripts/install.js

Start downloading binary at https://github.com/sass/node-sass/releases/download/
v3.10.1/win32-x64-46_binding.node
Cannot download “https://github.com/sass/node-sass/releases/download/v3.10.1/win
32-x64-46_binding.node”:

HTTP error 403 Forbidden

Hint: If github.com is not accessible in your location
try setting a proxy via HTTP_PROXY, e.g.

  export HTTP_PROXY=http://example.com:1234

or configure npm proxy via

  npm config set proxy http://example.com:8080

node-sass@3.10.1 postinstall C:\Users\58690\ionic2\node_modules@ionic\app-scr
ipts\node_modules\node-sass
node scripts/build.js

Building: C:\Program Files\nodejs\node.exe C:\Users\58690\ionic2\node_modules@i
onic\app-scripts\node_modules\node-sass\node_modules\node-gyp\bin\node-gyp.js re
build --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_li
brary=
gyp info it worked if it ends with ok
gyp verb cli [ ‘C:\Program Files\nodejs\node.exe’,
gyp verb cli ‘C:\Users\58690\ionic2\node_modules\@ionic\app-scripts\nod
e_modules\node-sass\node_modules\node-gyp\bin\node-gyp.js’,
gyp verb cli ‘rebuild’,
gyp verb cli ‘–verbose’,
gyp verb cli ‘–libsass_ext=’,
gyp verb cli ‘–libsass_cflags=’,
gyp verb cli ‘–libsass_ldflags=’,
gyp verb cli ‘–libsass_library=’ ]
gyp info using node-gyp@3.4.0
gyp info using node@4.3.0 | win32 | x64
gyp verb command rebuild
gyp verb command clean
gyp verb clean removing “build” directory
gyp verb command configure
gyp verb check python checking for Python executable “python2” in the PATH
gyp verb which failed Error: not found: python2
gyp verb which failed at getNotFoundError (C:\Users\58690\ionic2\node_modu
les@ionic\app-scripts\node_modules\node-sass\node_modules\node-gyp\node_modules
\which\which.js:13:12)
gyp verb which failed at F (C:\Users\58690\ionic2\node_modules@ionic\app-
scripts\node_modules\node-sass\node_modules\node-gyp\node_modules\which\which.js
:68:19)
gyp verb which failed at E (C:\Users\58690\ionic2\node_modules@ionic\app-
scripts\node_modules\node-sass\node_modules\node-gyp\node_modules\which\which.js
:80:29)
gyp verb which failed at C:\Users\58690\ionic2\node_modules@ionic\app-scr
ipts\node_modules\node-sass\node_modules\node-gyp\node_modules\which\which.js:89
:16
gyp verb which failed at C:\Users\58690\ionic2\node_modules@ionic\app-scr
ipts\node_modules\node-sass\node_modules\node-gyp\node_modules\which\node_module
s\isexe\index.js:44:5
gyp verb which failed at C:\Users\58690\ionic2\node_modules@ionic\app-scr
ipts\node_modules\node-sass\node_modules\node-gyp\node_modules\which\node_module
s\isexe\windows.js:29:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:82:15)
gyp verb which failed python2 { [Error: not found: python2] code: ‘ENOENT’ }
gyp verb check python checking for Python executable “python” in the PATH
gyp verb which failed Error: not found: python
gyp verb which failed at getNotFoundError (C:\Users\58690\ionic2\node_modu
les@ionic\app-scripts\node_modules\node-sass\node_modules\node-gyp\node_modules
\which\which.js:13:12)
gyp verb which failed at F (C:\Users\58690\ionic2\node_modules@ionic\app-
scripts\node_modules\node-sass\node_modules\node-gyp\node_modules\which\which.js
:68:19)
gyp verb which failed at E (C:\Users\58690\ionic2\node_modules@ionic\app-
scripts\node_modules\node-sass\node_modules\node-gyp\node_modules\which\which.js
:80:29)
gyp verb which failed at C:\Users\58690\ionic2\node_modules@ionic\app-scr
ipts\node_modules\node-sass\node_modules\node-gyp\node_modules\which\which.js:89
:16
gyp verb which failed at C:\Users\58690\ionic2\node_modules@ionic\app-scr
ipts\node_modules\node-sass\node_modules\node-gyp\node_modules\which\node_module
s\isexe\index.js:44:5
gyp verb which failed at C:\Users\58690\ionic2\node_modules@ionic\app-scr
ipts\node_modules\node-sass\node_modules\node-gyp\node_modules\which\node_module
s\isexe\windows.js:29:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:82:15)
gyp verb which failed python { [Error: not found: python] code: ‘ENOENT’ }
gyp verb could not find “python”. checking python launcher
gyp verb could not find “python”. guessing location
gyp verb ensuring that file exists: C:\Python27\python.exe
gyp ERR! configure error
gyp ERR! stack Error: Can’t find Python executable “python”, you can set the PYT
HON env variable.
gyp ERR! stack at failNoPython (C:\Users\58690\ionic2\node_modules@ionic\ap
p-scripts\node_modules\node-sass\node_modules\node-gyp\lib\configure.js:449:14)
gyp ERR! stack at C:\Users\58690\ionic2\node_modules@ionic\app-scripts\node
_modules\node-sass\node_modules\node-gyp\lib\configure.js:404:11
gyp ERR! stack at C:\Users\58690\ionic2\node_modules@ionic\app-scripts\node
_modules\node-sass\node_modules\node-gyp\node_modules\graceful-fs\polyfills.js:2
84:29
gyp ERR! stack at FSReqWrap.oncomplete (fs.js:82:15)
gyp ERR! System Windows_NT 6.1.7601
gyp ERR! command “C:\Program Files\nodejs\node.exe” “C:\Users\58690\ionic2
\node_modules\@ionic\app-scripts\node_modules\node-sass\node_modules\node
-gyp\bin\node-gyp.js” “rebuild” “–verbose” “–libsass_ext=” “–libsass_cflags
=” “–libsass_ldflags=” “–libsass_library=”
gyp ERR! cwd C:\Users\58690\ionic2\node_modules@ionic\app-scripts\node_modules
node-sass
gyp ERR! node -v v4.3.0
gyp ERR! node-gyp -v v3.4.0
gyp ERR! not ok
Build failed
npm ERR! Windows_NT 6.1.7601
npm ERR! argv “C:\Program Files\nodejs\node.exe” “C:\Program Files\nodejs\
node_modules\npm\bin\npm-cli.js” “install”
npm ERR! node v4.3.0
npm ERR! npm v2.14.12
npm ERR! code ELIFECYCLE

npm ERR! node-sass@3.10.1 postinstall: node scripts/build.js
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the node-sass@3.10.1 postinstall script ‘node scripts/build.j
s’.
npm ERR! This is most likely a problem with the node-sass package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node scripts/build.js
npm ERR! You can get their info via:
npm ERR! npm owner ls node-sass
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! C:\Users\58690\ionic2\npm-debug.log
Error with start undefined
Error Initializing app: There was an error with the spawned command: npminstall
There was an error with the spawned command: npminstall

**

Also not working

**

ionic serve

Error Log

0 info it worked if it ends with ok
1 verbose cli [ ‘C:\Program Files\nodejs\node.exe’,
1 verbose cli ‘C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js’,
1 verbose cli ‘run’,
1 verbose cli ‘ionic:serve’,
1 verbose cli ‘–’,
1 verbose cli ‘–v2’,
1 verbose cli ‘–address’,
1 verbose cli ‘0.0.0.0’,
1 verbose cli ‘–port’,
1 verbose cli ‘8100’,
1 verbose cli ‘–livereload-port’,
1 verbose cli ‘35729’ ]
2 info using npm@2.14.12
3 info using node@v4.3.0
4 verbose run-script [ ‘preionic:serve’, ‘ionic:serve’, ‘postionic:serve’ ]
5 info preionic:serve ionic-app-base@
6 info ionic:serve ionic-app-base@
7 verbose unsafe-perm in lifecycle true
8 info ionic-app-base@ Failed to exec ionic:serve script
9 verbose stack Error: ionic-app-base@ ionic:serve: ionic-app-scripts serve "--v2" "--address" "0.0.0.0" "--port" "8100" "--livereload-port" "35729"
9 verbose stack Exit status 1
9 verbose stack at EventEmitter. (C:\Program Files\nodejs\node_modules\npm\lib\utils\lifecycle.js:214:16)
9 verbose stack at emitTwo (events.js:87:13)
9 verbose stack at EventEmitter.emit (events.js:172:7)
9 verbose stack at ChildProcess. (C:\Program Files\nodejs\node_modules\npm\lib\utils\spawn.js:24:14)
9 verbose stack at emitTwo (events.js:87:13)
9 verbose stack at ChildProcess.emit (events.js:172:7)
9 verbose stack at maybeClose (internal/child_process.js:821:16)
9 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)
10 verbose pkgid ionic-app-base@
11 verbose cwd D:\ionic2\myAwesomeApp
12 error Windows_NT 6.1.7601
13 error argv “C:\Program Files\nodejs\node.exe” “C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js” “run” “ionic:serve” “–” “–v2” “–address” “0.0.0.0” “–port” “8100” “–livereload-port” “35729”
14 error node v4.3.0
15 error npm v2.14.12
16 error code ELIFECYCLE
17 error ionic-app-base@ ionic:serve: ionic-app-scripts serve "--v2" "--address" "0.0.0.0" "--port" "8100" "--livereload-port" "35729"
17 error Exit status 1
18 error Failed at the ionic-app-base@ ionic:serve script ‘ionic-app-scripts serve “–v2” “–address” “0.0.0.0” “–port” “8100” “–livereload-port” “35729”’.
18 error This is most likely a problem with the ionic-app-base package,
18 error not with npm itself.
18 error Tell the author that this fails on your system:
18 error ionic-app-scripts serve “–v2” “–address” “0.0.0.0” “–port” “8100” “–livereload-port” “35729”
18 error You can get their info via:
18 error npm owner ls ionic-app-base
18 error There is likely additional logging output above.
19 verbose exit [ 1, true ]