Ionic npm install error

× npm install - failed!
[ERROR] An error occurred while running npm install (exit code 1):

    npm WARN deprecated babili@0.1.2: babili has been renamed to babel-minify. Please update to babel-minify
    npm WARN deprecated babel-preset-babili@0.1.4: babili has been renamed to babel-minify. Please update to
    babel-preset-minify
    npm WARN deprecated object-keys@0.2.0: Please update to the latest object-keys
    npm WARN prefer global node-gyp@3.6.2 should be installed with -g

    > node-sass@4.5.3 install C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass
    > node scripts/install.js

    Downloading binary from https://github.com/sass/node-sass/releases/download/v4.5.3/win32-x64-48_binding.node
    Cannot download "https://github.com/sass/node-sass/releases/download/v4.5.3/win32-x64-48_binding.node":

    ESOCKETTIMEDOUT

    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

    > uglifyjs-webpack-plugin@0.4.6 postinstall
    C:\Users\USER\Desktop\Projects\IonicApp\node_modules\uglifyjs-webpack-plugin
    > node lib/post_install.js


    > node-sass@4.5.3 postinstall C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass
    > node scripts/build.js

    Binary found at C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\vendor\win32-x64-48\binding.node
    Testing binary
    Binary has a problem: Error: %1 is not a valid Win32 application.
    \\?\C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\vendor\win32-x64-48\binding.node
         at Error (native)
         at Object.Module._extensions..node (module.js:597:18)
         at Module.load (module.js:487:32)
         at tryModuleLoad (module.js:446:12)
         at Function.Module._load (module.js:438:3)
         at Module.require (module.js:497:17)
         at require (internal/module.js:20:19)
         at module.exports (C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\lib\binding.js:19:10)
         at Object.<anonymous> (C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\lib\index.js:14:35)
         at Module._compile (module.js:570:32)
    Building the binary locally
    Building: C:\Program Files\nodejs\node.exe
    C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext=
    --libsass_cflags= --libsass_ldflags= --libsass_library=
    gyp info it worked if it ends with ok
    gyp verb cli [ 'C:\\Program Files\\nodejs\\node.exe',
    gyp verb cli   'C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\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@3.6.2
    gyp info using node@6.11.2 | 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\USER\Desktop\Projects\IonicApp\node_modules\which\which.js:13:12)
    gyp verb `which` failed     at F (C:\Users\USER\Desktop\Projects\IonicApp\node_modules\which\which.js:68:19)
    gyp verb `which` failed     at E (C:\Users\USER\Desktop\Projects\IonicApp\node_modules\which\which.js:80:29)
    gyp verb `which` failed     at C:\Users\USER\Desktop\Projects\IonicApp\node_modules\which\which.js:89:16
    gyp verb `which` failed     at C:\Users\USER\Desktop\Projects\IonicApp\node_modules\isexe\index.js:42:5
    gyp verb `which` failed     at C:\Users\USER\Desktop\Projects\IonicApp\node_modules\isexe\windows.js:36:5
    gyp verb `which` failed     at FSReqWrap.oncomplete (fs.js:123:15)
    gyp verb `which` failed  python2 { Error: not found: python2
    gyp verb `which` failed     at getNotFoundError
    (C:\Users\USER\Desktop\Projects\IonicApp\node_modules\which\which.js:13:12)
    gyp verb `which` failed     at F (C:\Users\USER\Desktop\Projects\IonicApp\node_modules\which\which.js:68:19)
    gyp verb `which` failed     at E (C:\Users\USER\Desktop\Projects\IonicApp\node_modules\which\which.js:80:29)
    gyp verb `which` failed     at C:\Users\USER\Desktop\Projects\IonicApp\node_modules\which\which.js:89:16
    gyp verb `which` failed     at C:\Users\USER\Desktop\Projects\IonicApp\node_modules\isexe\index.js:42:5
    gyp verb `which` failed     at C:\Users\USER\Desktop\Projects\IonicApp\node_modules\isexe\windows.js:36:5
    gyp verb `which` failed     at FSReqWrap.oncomplete (fs.js:123:15)
    gyp verb `which` failed   stack: 'Error: not found: python2\n    at getNotFoundError
    (C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\which\\which.js:13:12)\n    at F
    (C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\which\\which.js:68:19)\n    at E
    (C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\which\\which.js:80:29)\n    at
    C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\which\\which.js:89:16\n    at
    C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\isexe\\index.js:42:5\n    at
    C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\isexe\\windows.js:36:5\n    at FSReqWrap.oncomplete
    (fs.js:123:15)',
    gyp verb `which` failed   code: 'ENOENT' }
    gyp verb check python checking for Python executable "python" in the PATH
    gyp verb `which` succeeded python C:\Python27\python.EXE
    gyp verb check python version `C:\Python27\python.EXE -c "import platform; print(platform.python_version());"`
    returned: "2.7.10\r\n"
    gyp verb get node dir no --target version specified, falling back to host node version: 6.11.2
    gyp verb command install [ '6.11.2' ]
    gyp verb install input version string "6.11.2"
    gyp verb install installing version: 6.11.2
    gyp verb install --ensure was passed, so won't reinstall if already installed
    gyp verb install version is already installed, need to check "installVersion"
    gyp verb got "installVersion" 9
    gyp verb needs "installVersion" 9
    gyp verb install version is good
    gyp verb get node dir target node version installed: 6.11.2
    gyp verb build dir attempting to create "build" dir:
    C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\build
    gyp verb build dir "build" dir needed to be created?
    C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\build
    gyp verb Not using VS2017: Could not use PowerShell to find VS2017
    gyp verb build/config.gypi creating config file
    gyp verb build/config.gypi writing out config file:
    C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\build\config.gypi
    gyp verb config.gypi checking for gypi file:
    C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\config.gypi
    gyp verb common.gypi checking for gypi file:
    C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\common.gypi
    gyp verb gyp gyp format was not specified; forcing "msvs"
    gyp info spawn C:\Python27\python.EXE
    gyp info spawn args [ 'C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\node-gyp\\gyp\\gyp_main.py',
    gyp info spawn args   'binding.gyp',
    gyp info spawn args   '-f',
    gyp info spawn args   'msvs',
    gyp info spawn args   '-G',
    gyp info spawn args   'msvs_version=auto',
    gyp info spawn args   '-I',
    gyp info spawn args
    'C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\node-sass\\build\\config.gypi',
    gyp info spawn args   '-I',
    gyp info spawn args   'C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\node-gyp\\addon.gypi',
    gyp info spawn args   '-I',
    gyp info spawn args   'C:\\Users\\USER\\.node-gyp\\6.11.2\\include\\node\\common.gypi',
    gyp info spawn args   '-Dlibrary=shared_library',
    gyp info spawn args   '-Dvisibility=default',
    gyp info spawn args   '-Dnode_root_dir=C:\\Users\\USER\\.node-gyp\\6.11.2',
    gyp info spawn args   '-Dnode_gyp_dir=C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\node-gyp',
    gyp info spawn args   '-Dnode_lib_file=C:\\Users\\USER\\.node-gyp\\6.11.2\\<(target_arch)\\node.lib',
    gyp info spawn args   '-Dmodule_root_dir=C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\node-sass',        gyp info spawn args   '-Dnode_engine=v8',
    gyp info spawn args   '--depth=.',
    gyp info spawn args   '--no-parallel',
    gyp info spawn args   '--generator-output',
    gyp info spawn args   'C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\node-sass\\build',
    gyp info spawn args   '-Goutput_dir=.' ]
    gyp verb command build []
    gyp verb build type Release
    gyp verb architecture x64
    gyp verb node dev dir C:\Users\USER\.node-gyp\6.11.2
    gyp verb found first Solution file build/binding.sln
    gyp verb could not find "msbuild.exe" in PATH - finding location in registry
    gyp info spawn C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
    gyp info spawn args [ 'build/binding.sln',
    gyp info spawn args   '/nologo',
    gyp info spawn args   '/p:Configuration=Release;Platform=x64' ]
    Building the projects in this solution one at a time. To enable parallel build, please add the "/m" switch.
    Build started 17/08/2017 9:17:30 PM.
    Project "C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\build\binding.sln" on node 1 (default
    targets).
    ValidateSolutionConfiguration:
       Building solution configuration "Release|x64".
    MSBUILD : error MSB3428: Could not load the Visual C++ component "VCBuild.exe". To fix this, 1) install the .NET
    Framework 2.0 SDK, 2) install Microsoft Visual Studio 2005 or 3) add the location of the component to the system
    path if it is installed elsewhere.
    [C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\build\binding.sln]
    Done Building Project "C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\build\binding.sln"
    (default targets) -- FAILED.

    Build FAILED.

    "C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\build\binding.sln" (default target) (1) ->
    (_src_\libsass target) ->
       MSBUILD : error MSB3428: Could not load the Visual C++ component "VCBuild.exe". To fix this, 1) install the
    .NET Framework 2.0 SDK, 2) install Microsoft Visual Studio 2005 or 3) add the location of the component to the
    system path if it is installed elsewhere.
    [C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass\build\binding.sln]

         0 Warning(s)
         1 Error(s)

    Time Elapsed 00:00:00.78
    gyp ERR! build error
    gyp ERR! stack Error: `C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe` failed with exit code: 1
    gyp ERR! stack     at ChildProcess.onExit
    (C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-gyp\lib\build.js:258:23)
    gyp ERR! stack     at emitTwo (events.js:106:13)
    gyp ERR! stack     at ChildProcess.emit (events.js:191:7)
    gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)
    gyp ERR! System Windows_NT 10.0.15063
    gyp ERR! command "C:\\Program Files\\nodejs\\node.exe"
    "C:\\Users\\USER\\Desktop\\Projects\\IonicApp\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose"
    "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
    gyp ERR! cwd C:\Users\USER\Desktop\Projects\IonicApp\node_modules\node-sass
    gyp ERR! node -v v6.11.2
    gyp ERR! node-gyp -v v3.6.2
    gyp ERR! not ok
    Build failed with error code: 1
    IonicApp@0.0.1 C:\Users\USER\Desktop\Projects\IonicApp
    +-- @angular/common@4.1.3
    +-- @angular/compiler@4.1.3
    +-- @angular/compiler-cli@4.1.3
    | +-- @angular/tsc-wrapped@4.1.3
    | | `-- tsickle@0.21.6
    | |   +-- mkdirp@0.5.1
    | |   | `-- minimist@0.0.8
    | |   +-- source-map@0.5.6
    | |   `-- source-map-support@0.4.16
    | +-- minimist@1.2.0
    | `-- reflect-metadata@0.1.10
    +-- @angular/core@4.1.3
    +-- @angular/forms@4.1.3
    +-- @angular/http@4.1.3
    +-- @angular/platform-browser@4.1.3
    +-- @angular/platform-browser-dynamic@4.1.3
    +-- @ionic-native/core@3.12.1
    +-- @ionic-native/splash-screen@3.12.1
    +-- @ionic-native/status-bar@3.12.1
    +-- @ionic/storage@2.0.1
    | +-- @types/localforage@0.0.30
    | +-- localforage@1.4.3
    | | `-- lie@3.0.2
    | |   +-- es3ify@0.1.4
    | |   | +-- esprima-fb@3001.1.0-dev-harmony-fb
    | |   | +-- jstransform@3.0.0
    | |   | | +-- base62@0.1.1
    | |   | | `-- source-map@0.1.31
    | |   | |   `-- amdefine@1.0.1
    | |   | `-- through@2.3.8
    | |   +-- immediate@3.0.6
    | |   +-- inline-process-browser@1.0.0
    | |   | +-- falafel@1.2.0
    | |   | | +-- acorn@1.2.2
    | |   | | +-- foreach@2.0.5
    | |   | | `-- object-keys@1.0.11
    | |   | `-- through2@0.6.5
    | |   |   +-- readable-stream@1.0.34
    | |   |   | +-- core-util-is@1.0.2
    | |   |   | +-- inherits@2.0.3
    | |   |   | `-- string_decoder@0.10.31
    | |   |   `-- xtend@4.0.1
    | |   `-- unreachable-branch-transform@0.3.0
    | |     +-- esmangle-evaluator@1.0.1
    | |     `-- recast@0.10.43
    | |       +-- ast-types@0.8.15
    | |       +-- esprima-fb@15001.1001.0-dev-harmony-fb
    | |       `-- private@0.1.7
    | `-- localforage-cordovasqlitedriver@1.5.0
    +-- ansi-regex@2.1.1  extraneous
    +-- babel-code-frame@6.26.0  extraneous
    +-- babel-core@6.26.0  extraneous
    +-- d@1.0.0  extraneous
    +-- ionic-angular@3.6.0
    +-- ionicons@3.0.0
    +-- rxjs@5.4.0
    | `-- symbol-observable@1.0.4
    +-- sw-toolbox@3.6.0
    | +-- path-to-regexp@1.7.0
    | | `-- isarray@0.0.1
    | `-- serviceworker-cache-polyfill@4.0.0
    +-- typescript@2.3.4
    `-- zone.js@0.8.12

    npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules\chokidar\node_modules\fsevents):
    npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.2: wanted
    {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
    npm WARN ajv-keywords@2.1.0 requires a peer of ajv@>=5.0.0 but none was installed.
    npm ERR! Windows_NT 10.0.15063
    npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program
    Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install"
    npm ERR! node v6.11.2
    npm ERR! npm  v3.10.10
    npm ERR! code ELIFECYCLE

    npm ERR! node-sass@4.5.3 postinstall: `node scripts/build.js`
    npm ERR! Exit status 1
    npm ERR!
    npm ERR! Failed at the node-sass@4.5.3 postinstall script 'node scripts/build.js'.
    npm ERR! Make sure you have the latest version of node.js and npm installed.
    npm ERR! If you do, 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 information on how to open an issue for this project with:
    npm ERR!     npm bugs node-sass
    npm ERR! Or if that isn't available, 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\USER\Desktop\Projects\IonicApp\npm-debug.log

this pops up when i enter ionic start FirebaseAPP blank. how can i fix this?

It tells your right in the error message:

If its not the SocketTimeOut it could be that your environment isnt up to date?