yarn install doesn't work on windows 10

[findjonmos]

I basically get the below errors, I have hunted around the web to try and find out specifically whats wrong but at a loss for the moment. Paid a lot for the course and cant get started

$ yarn install
yarn install v1.5.1
[1/4] Resolving packages...
[2/4] Fetching packages...
info fsevents@1.0.15: The platform "win32" is incompatible with this module.
info "fsevents@1.0.15" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
[4/4] Building fresh packages...
[1/1] ⠄ node-sass: checking for Python executable "python" in the PATH
[-/1] ⠄ waiting...
[-/1] ⡀ waiting...
[-/1] ⡀ waiting...
error An unexpected error occurred: "C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules
ode-sass: Command failed.
Exit code: 1
Command: C:\WINDOWS\system32\cmd.exe
Arguments: /d /s /c node scripts/build.js
Directory: C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules
ode-sass
Output:
Building: C:\Program Files
odejs
ode.exe C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules
ode-gyp\bin
ode-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\
odejs\
ode.exe',
gyp verb cli 'C:\\Users\\jmosley\\Documents\\Development\\angular-fundamentals-seed\
ode_modules\
ode-gyp\\bin\
ode-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@8.9.4 | 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\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:13:12)
gyp verb which failed at F (C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:68:19)
gyp verb which failed at E (C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:80:29)
gyp verb which failed at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:89:16
gyp verb which failed at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\isexe\index.js:44:5
gyp verb which failed at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\isexe\windows.js:29:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:152:21)
gyp verb which failed python2 { Error: not found: python2
gyp verb which failed at getNotFoundError (C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:13:12)
gyp verb which failed at F (C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:68:19)
gyp verb which failed at E (C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:80:29)
gyp verb which failed at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:89:16
gyp verb which failed at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\isexe\index.js:44:5
gyp verb which failed at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\isexe\windows.js:29:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:152:21) 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\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:13:12)
gyp verb which failed at F (C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:68:19)
gyp verb which failed at E (C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:80:29)
gyp verb which failed at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:89:16
gyp verb which failed at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\isexe\index.js:44:5
gyp verb which failed at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\isexe\windows.js:29:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:152:21)
gyp verb which failed python { Error: not found: python
gyp verb which failed at getNotFoundError (C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:13:12)
gyp verb which failed at F (C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:68:19)
gyp verb which failed at E (C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:80:29)
gyp verb which failed at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\which\which.js:89:16
gyp verb which failed at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\isexe\index.js:44:5
gyp verb which failed at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\isexe\windows.js:29:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:152:21) 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 failNoPython (C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules
ode-gyp\lib\configure.js:449:14)
gyp ERR! stack at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules
ode-gyp\lib\configure.js:404:11
gyp ERR! stack at C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules\graceful-fs\polyfills.js:284:29
gyp ERR! stack at FSReqWrap.oncomplete (fs.js:152:21)
gyp ERR! System Windows_NT 10.0.16299
gyp ERR! command "C:\\Program Files\
odejs\
ode.exe" "C:\\Users\\jmosley\\Documents\\Development\\angular-fundamentals-seed\
ode_modules\
ode-gyp\\bin\
ode-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd C:\Users\jmosley\Documents\Development\angular-fundamentals-seed
ode_modules
ode-sass
gyp ERR! node -v v8.9.4
gyp ERR! node-gyp -v v3.4.0

[toddmotto]

Hey Jon - looking into this. I think it also has something to do with the dependency on Node.js. I think a lower Node version would solve it, but will check this out now on my machine.

…

On 2 March 2018 at 15:43, Jon ***@***.***> wrote: I basically get the below errors, I have hunted around the web to try and find out specifically whats wrong but at a loss for the moment. Paid a lot for the course and cant get started $ yarn install yarn install v1.5.1 [1/4] Resolving packages... [2/4] Fetching packages... info ***@***.***: The platform "win32" is incompatible with this module. info ***@***.***" is an optional dependency and failed compatibility check. Excluding it from installation. [3/4] Linking dependencies... [4/4] Building fresh packages... [1/1] ⠄ node-sass: checking for Python executable "python" in the PATH [-/1] ⠄ waiting... [-/1] ⡀ waiting... [-/1] ⡀ waiting... error An unexpected error occurred: "C:\Users\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules ode-sass: Command failed. Exit code: 1 Command: C:\WINDOWS\system32\cmd.exe Arguments: /d /s /c node scripts/build.js Directory: C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules ode-sass Output: Building: C:\Program Files odejs ode.exe C:\Users\jmosley\Documents\Development\angular-fundamentals-seed ode_modules ode-gyp\bin ode-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\ odejs\ ode.exe', gyp verb cli 'C:\\Users\\jmosley\\Documents\\Development\\ angular-fundamentals-seed\ ode_modules\ ode-gyp\\bin\ ode-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 ***@***.*** gyp info using ***@***.*** | 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\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules\which\which.js:13:12) gyp verb which failed at F (C:\Users\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules\which\which.js:68:19) gyp verb which failed at E (C:\Users\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules\which\which.js:80:29) gyp verb which failed at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\which\which.js:89:16 gyp verb which failed at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\isexe\index.js:44:5 gyp verb which failed at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\isexe\windows.js:29:5 gyp verb which failed at FSReqWrap.oncomplete (fs.js:152:21) gyp verb which failed python2 { Error: not found: python2 gyp verb which failed at getNotFoundError (C:\Users\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules\which\which.js:13:12) gyp verb which failed at F (C:\Users\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules\which\which.js:68:19) gyp verb which failed at E (C:\Users\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules\which\which.js:80:29) gyp verb which failed at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\which\which.js:89:16 gyp verb which failed at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\isexe\index.js:44:5 gyp verb which failed at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\isexe\windows.js:29:5 gyp verb which failed at FSReqWrap.oncomplete (fs.js:152:21) 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\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules\which\which.js:13:12) gyp verb which failed at F (C:\Users\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules\which\which.js:68:19) gyp verb which failed at E (C:\Users\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules\which\which.js:80:29) gyp verb which failed at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\which\which.js:89:16 gyp verb which failed at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\isexe\index.js:44:5 gyp verb which failed at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\isexe\windows.js:29:5 gyp verb which failed at FSReqWrap.oncomplete (fs.js:152:21) gyp verb which failed python { Error: not found: python gyp verb which failed at getNotFoundError (C:\Users\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules\which\which.js:13:12) gyp verb which failed at F (C:\Users\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules\which\which.js:68:19) gyp verb which failed at E (C:\Users\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules\which\which.js:80:29) gyp verb which failed at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\which\which.js:89:16 gyp verb which failed at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\isexe\index.js:44:5 gyp verb which failed at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\isexe\windows.js:29:5 gyp verb which failed at FSReqWrap.oncomplete (fs.js:152:21) 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 failNoPython (C:\Users\jmosley\Documents\ Development\angular-fundamentals-seed ode_modules ode-gyp\lib\configure.js:449:14) gyp ERR! stack at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules ode-gyp\lib\configure.js:404:11 gyp ERR! stack at C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules\graceful-fs\polyfills.js:284:29 gyp ERR! stack at FSReqWrap.oncomplete (fs.js:152:21) gyp ERR! System Windows_NT 10.0.16299 gyp ERR! command "C:\\Program Files\ odejs\ ode.exe" "C:\\Users\\jmosley\\Documents\\Development\\ angular-fundamentals-seed\ ode_modules\ ode-gyp\\bin\ ode-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library=" gyp ERR! cwd C:\Users\jmosley\Documents\Development\angular- fundamentals-seed ode_modules ode-sass gyp ERR! node -v v8.9.4 gyp ERR! node-gyp -v v3.4.0 — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#10>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABlEoJVyg7RT2khOGCy2zfcz22dm7zE9ks5taWiTgaJpZM4SaFFv> .

-- @toddmotto

[findjonmos]

Wow! Thanks for the super fast response Todd. I will also test and see

[toddmotto]

A few others have reached out today (coincidentally) so either something globally's being strange or everyone on Windows is having Node issues with this setup! Will report back shortly. :)

…

On 2 March 2018 at 15:50, Jon ***@***.***> wrote: Wow! Thanks for the super fast response Todd. I will also test and see — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#10 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABlEoAMBA_05-06pw_EpyXMGJL0qLaNcks5taWo7gaJpZM4SaFFv> .

-- @toddmotto

[findjonmos]

Brill! Thanks Todd :)

[findjonmos]

It seems like your thinking on the issue was spot on Todd! I dropped back a whole version (node 7.10.1) and all works.
I could probably try going up a few versions but I'm too keen to crack on with learning for now :)

[toddmotto]

Someone else has confirmed this - I've added a temporary note to that Installation video lesson for others - will check out what we need to fix this for users. Will keep the issue open! :)

[StrangeCargo74]

I had this problem. Starting the course and coming crashing to a halt is not a good experience! For me, changing my node version wasn't an option.

I think the install needed a pre-built package (or something) that wasn't available, and so tried to rebuild it. That failed because node-gyp and its prerequisites were not installed. I think.

So, with elevated privileges I installed

npm install --global --production windows-build-tools

and then i did

npm install --global node-gyp

and then added python to my environment variables:

set PYTHON "%USERPROFILE%.windows-build-tools\python27\python.exe"

and then the yarn install worked.

..bit of a faff tho!

[zaheer-d]

this worked for me. only had to change this line set PYTHON "%USERPROFILE%.windows-build-tools\python27\python.exe" -> set PYTHON "%USERPROFILE%\.windows-build-tools\python27\python.exe" notice the "\" after %USERPROFILE%

[mjangir]

I had the same problem and found one easy solution without degrading my node version.

1. Go to python download page and install python 2.7 from the downloaded installer.

2. Then open the command prompt with administrator and type the following
   npm install --global --production windows-build-tools

3. Then run npm config set msvs_version 2015 --global

Close all cmd instances and run npm install again in your project and you are good to go.

[sanpan1234]

I am facing the same issue trying to yarn install. It's a lot of hoops to go through just to get the base project running. Installing ye-olde legacy version of Python? really??

[Braybrookr]

I have messed around trying to get this up and running. My seed project now builds but when i open localhost:4000 there is no Hello!. It is just a blank white screen.

--edit: got my hello to finally appear. re-did everything from start with both 7.10 and windows-build-tools. Also used 2.7rc15 python.

for anyone else having issues .

[sanpan1234]

Just created my own base project using CLI. The only downside is I need to now run the json-server on a separate port but that's easier than struggling with this.

[tayelno]

try my solution here #11

Here is my machine settings, High Sierra v10.13.4 , Darwin x64.

$ node -v
v10.0.0

$ npm -v
5.6.0

$ yarn -v
1.6.0
So what I did was simple, just remove the locked dev-dependencies of node-sass and sass-loader from package.json then simply run:

yarn add node-sass sass-loader --dev
fixed everything for me.

here check my fork of the project, this commit shows the diff in my package.json

dependencies fix

I hope this fix it for you as well.

[percipio]

Awesome, this worked for me!