Issues when creating new angular 7 project - node.js

Question

Error while creating the new project using angular cli. Tried npm clear cache --force and manually deleted the npm cache folder. None of them worked.
No proxy required for connecting internet
ng new testapp--routing
> node-sass#4.11.0 install C:\Users\user\testapp\node_modules\node-sass
> node scripts/install.js
Downloading binary from https://github.com/sass/node-sass/releases/download/v4.11.0/win32-x64-72_binding.node
Cannot download "https://github.com/sass/node-sass/releases/download/v4.11.0/win32-x64-72_binding.node":
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
> node-sass#4.11.0 postinstall C:\Users\user\testapp\node_modules\node-sass
> node scripts/build.js
Building: C:\Program Files\nodejs\node.exe C:\Users\user\testapp\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 [
gyp verb cli 'C:\\Program Files\\nodejs\\node.exe',
gyp verb cli 'C:\\Users\\user\\testapp\\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 verb cli ]
gyp info using node-gyp#3.8.0
gyp info using node#12.0.0 | 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 ```

Answer 1

Just create new project as:
ng new testapp
Then remove your angular cli and clear cache and please again
npm install -g #angular/cli
And build and run your project.

Answer 2

Sometimes due to global installation of many library you will get the above error. No need to create new project. Please perform the following steps
Step 1: Try to do the npm i again. if you are ending up with error then go to step 2
Step 2: $ npm install -g node-sass
And finally, one last check:
$ node-sass -v
Then perform step 1 again if needed ( optional).
Once the node-sass installation is successful then you wont face this error going forward.
Hope this will help

Answer 3

I was having pretty much the same problem. I'm guessing you are selecting SCSS as the stylesheet format? I got a bit further than you before it ended in compile errors but would not work all the way. I solved my problem by downgrading to node version 11. It seems node-sass 4.11 does not support node version 12. See Error installing node-sass.
The download error is shown because there is no such file. The latest version time of writing at github is win32-x64-67_binding.node.
I also think that you might have a dependency problem with Python. Have a look at node-gyp configuration - windows and make sure you have all the dependencies.
Hope this helps!