Ionic CLI start project error - ionic-framework

Question

I'm having a few questions and problems. I'm using the CLI I went with the choice of tabs. when I start a project I get back these errors is there any way you can give me some input please?
npm i
× Running command - failed!
[ERROR] An error occurred while running npm i (exit code 1):
node-sass#4.5.3 install C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\node-sass
node scripts/install.js
Downloading binary from https://github.com/sass/nod...
Cannot download "https://github.com/sass/nod...":
HTTP error 404 Not Found
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\webde\Desktop\ionicProjects\tryApp\node_modules\uglifyjs-webpack-plugin
node lib/post_install.js
node-sass#4.5.3 postinstall C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\node-sass
node scripts/build.js
Building: C:\Program Files (x86)\nodejs\node.exe
C:\Users\webde\Desktop\ionicProjects\tryApp\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 (x86)\nodejs\node.exe',
gyp verb cli
'C:\Users\webde\Desktop\ionicProjects\tryApp\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#9.3.0 | 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\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:13:12)
gyp verb which failed at F
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:68:19)
gyp verb which failed at E
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:80:29)
gyp verb which failed at
C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:89:16
gyp verb which failed at
C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\isexe\index.js:42:5
gyp verb which failed at
C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\isexe\windows.js:36:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:166:21)
gyp verb which failed python2 { Error: not found: python2
gyp verb which failed at getNotFoundError
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:13:12)
gyp verb which failed at F
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:68:19)
gyp verb which failed at E
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:80:29)
gyp verb which failed at C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:89:16
gyp verb which failed at C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\isexe\index.js:42:5
gyp verb which failed at C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\isexe\windows.js:36:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:166:21)
gyp verb which failed stack: 'Error: not found: python2\n at getNotFoundError
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:13:12)\n at F
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:68:19)\n at E
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:80:29)\n at
C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:89:16\n at
C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\isexe\index.js:42:5\n at
C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\isexe\windows.js:36:5\n at
FSReqWrap.oncomplete (fs.js:166:21)',
gyp verb which failed 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\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:13:12)
gyp verb which failed at F (C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:68:19)
gyp verb which failed at E (C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:80:29)
gyp verb which failed at C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:89:16
gyp verb which failed at C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\isexe\index.js:42:5
gyp verb which failed at C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\isexe\windows.js:36:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:166:21)
gyp verb which failed python { Error: not found: python
gyp verb which failed at getNotFoundError
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:13:12)
gyp verb which failed at F (C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:68:19)
gyp verb which failed at E (C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:80:29)
gyp verb which failed at C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:89:16
gyp verb which failed at C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\isexe\index.js:42:5
gyp verb which failed at C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\isexe\windows.js:36:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:166:21)
gyp verb which failed stack: 'Error: not found: python\n at getNotFoundError
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:13:12)\n at F
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:68:19)\n at E
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:80:29)\n at
C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\which\which.js:89:16\n at
C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\isexe\index.js:42:5\n at
C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\isexe\windows.js:36:5\n at
FSReqWrap.oncomplete (fs.js:166:21)',
gyp verb which failed 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 PYTHON env variable.
gyp ERR! stack at PythonFinder.failNoPython
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\node-gyp\lib\configure.js:483:19)
gyp ERR! stack at PythonFinder.
(C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\node-gyp\lib\configure.js:508:16)
gyp ERR! stack at C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\graceful-fs\polyfills.js:284:29
gyp ERR! stack at FSReqWrap.oncomplete (fs.js:166:21)
gyp ERR! System Windows_NT 10.0.16299
gyp ERR! command "C:\Program Files (x86)\nodejs\node.exe"
"C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\node-gyp\bin\node-gyp.js" "rebuild"
"--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd C:\Users\webde\Desktop\ionicProjects\tryApp\node_modules\node-sass
gyp ERR! node -v v9.3.0
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
Build failed with error code: 1
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.1.3 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.1.3: wanted
{"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm ERR! code ELIFECYCLE
npm ERR! errno 1
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.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\webde\AppData\Roaming\npm-cache_logs\2018-01-02T16_46_21_131Z-debug.log

Answer 1

Not a solution, but someone also posted this problem as an issue in the "sass/node-sass" repo on github: https://github.com/sass/node-sass/issues/2200.
Update: If you're using node 9, the problem is the fact that node-sass isn't compatible with it (see https://forum.ionicframework.com/t/problem-installing-ionic-and-starting-a-project/116887).
Using node LTS (https://nodejs.org/en/blog/release/v8.9.0/) fixed the issue for me.