npm install fails every time now

[IntelligentFunction]

Hi, I really don't know what's happened, but it was all running fine, I messed up the code and just recloned the repo to do a reset, and now npm fails. I'm completely lost. last time this happened, it was due to node-modules in the wrong folder, I currently have no folders marked "node_modules" anywhere on this computer now I've cleared the cache, but still I can't get any of the lessons to now work as node simply won't do it's job. here is the error message I am getting when I run npm install:
npm ERR! code 1 npm ERR! path /home/rob/Development/vue-getting-started/05-interacting-within-a-component/begin/vue-heroes/node_modules/node-sass npm ERR! command failed npm ERR! command sh -c node scripts/build.js npm ERR! Building: /usr/bin/node /home/rob/Development/vue-getting-started/05-interacting-within-a-component/begin/vue-heroes/node_modules/node-gyp/bin/node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library= npm ERR! gyp info it worked if it ends with ok npm ERR! gyp verb cli [ npm ERR! gyp verb cli '/usr/bin/node', npm ERR! gyp verb cli '/home/rob/Development/vue-getting-started/05-interacting-within-a-component/begin/vue-heroes/node_modules/node-gyp/bin/node-gyp.js', npm ERR! gyp verb cli 'rebuild', npm ERR! gyp verb cli '--verbose', npm ERR! gyp verb cli '--libsass_ext=', npm ERR! gyp verb cli '--libsass_cflags=', npm ERR! gyp verb cli '--libsass_ldflags=', npm ERR! gyp verb cli '--libsass_library=' npm ERR! gyp verb cli ] npm ERR! gyp info using node-gyp@3.8.0 npm ERR! gyp info using node@14.15.5 | linux | x64 npm ERR! gyp verb command rebuild [] npm ERR! gyp verb command clean [] npm ERR! gyp verb clean removing "build" directory npm ERR! gyp verb command configure [] npm ERR! gyp verb check python checking for Python executable "/home/rob/anaconda3/bin/python3" in the PATH npm ERR! gyp verb which` succeeded /home/rob/anaconda3/bin/python3 /home/rob/anaconda3/bin/python3
npm ERR! gyp ERR! configure error
npm ERR! gyp ERR! stack Error: Command failed: /home/rob/anaconda3/bin/python3 -c import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack File "", line 1
npm ERR! gyp ERR! stack import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack ^
npm ERR! gyp ERR! stack SyntaxError: invalid syntax
npm ERR! gyp ERR! stack
npm ERR! gyp ERR! stack at ChildProcess.exithandler (child_process.js:308:12)
npm ERR! gyp ERR! stack at ChildProcess.emit (events.js:315:20)
npm ERR! gyp ERR! stack at maybeClose (internal/child_process.js:1048:16)
npm ERR! gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:288:5)
npm ERR! gyp ERR! System Linux 5.4.0-65-generic
npm ERR! gyp ERR! command "/usr/bin/node" "/home/rob/Development/vue-getting-started/05-interacting-within-a-component/begin/vue-heroes/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
npm ERR! gyp ERR! cwd /home/rob/Development/vue-getting-started/05-interacting-within-a-component/begin/vue-heroes/node_modules/node-sass
npm ERR! gyp ERR! node -v v14.15.5
npm ERR! gyp ERR! node-gyp -v v3.8.0
npm ERR! gyp ERR! not ok
npm ERR! Build failed with error code: 1

npm ERR! A complete log of this run can be found in:
npm ERR! /home/rob/.npm/_logs/2021-02-16T00_11_04_924Z-debug.log
❯ node-gyp --version
v7.1.2
❯ npm cache verify
Cache verified and compressed (/.npm/_cacache)
Content verified: 1293 (31071323 bytes)
Index entries: 1293
Finished in 3.128s
❯ npm cache clean --force
npm WARN using --force Recommended protections disabled.
❯ npm cache verify
Cache verified and compressed (/.npm/_cacache)
Content verified: 0 (0 bytes)
Index entries: 0
Finished in 0.013s
❯ npm install
npm ERR! code 1
npm ERR! path /home/rob/Development/vue-getting-started/05-interacting-within-a-component/begin/vue-heroes/node_modules/node-sass
npm ERR! command failed
npm ERR! command sh -c node scripts/build.js
npm ERR! Building: /usr/bin/node /home/rob/Development/vue-getting-started/05-interacting-within-a-component/begin/vue-heroes/node_modules/node-gyp/bin/node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
npm ERR! gyp info it worked if it ends with ok
npm ERR! gyp verb cli [
npm ERR! gyp verb cli '/usr/bin/node',
npm ERR! gyp verb cli '/home/rob/Development/vue-getting-started/05-interacting-within-a-component/begin/vue-heroes/node_modules/node-gyp/bin/node-gyp.js',
npm ERR! gyp verb cli 'rebuild',
npm ERR! gyp verb cli '--verbose',
npm ERR! gyp verb cli '--libsass_ext=',
npm ERR! gyp verb cli '--libsass_cflags=',
npm ERR! gyp verb cli '--libsass_ldflags=',
npm ERR! gyp verb cli '--libsass_library='
npm ERR! gyp verb cli ]
npm ERR! gyp info using node-gyp@3.8.0
npm ERR! gyp info using node@14.15.5 | linux | x64
npm ERR! gyp verb command rebuild []
npm ERR! gyp verb command clean []
npm ERR! gyp verb clean removing "build" directory
npm ERR! gyp verb command configure []
npm ERR! gyp verb check python checking for Python executable "/home/rob/anaconda3/bin/python3" in the PATH
npm ERR! gyp verb which succeeded /home/rob/anaconda3/bin/python3 /home/rob/anaconda3/bin/python3
npm ERR! gyp ERR! configure error
npm ERR! gyp ERR! stack Error: Command failed: /home/rob/anaconda3/bin/python3 -c import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack File "", line 1
npm ERR! gyp ERR! stack import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack ^
npm ERR! gyp ERR! stack SyntaxError: invalid syntax
npm ERR! gyp ERR! stack
npm ERR! gyp ERR! stack at ChildProcess.exithandler (child_process.js:308:12)
npm ERR! gyp ERR! stack at ChildProcess.emit (events.js:315:20)
npm ERR! gyp ERR! stack at maybeClose (internal/child_process.js:1048:16)
npm ERR! gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:288:5)
npm ERR! gyp ERR! System Linux 5.4.0-65-generic
npm ERR! gyp ERR! command "/usr/bin/node" "/home/rob/Development/vue-getting-started/05-interacting-within-a-component/begin/vue-heroes/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
npm ERR! gyp ERR! cwd /home/rob/Development/vue-getting-started/05-interacting-within-a-component/begin/vue-heroes/node_modules/node-sass
npm ERR! gyp ERR! node -v v14.15.5
npm ERR! gyp ERR! node-gyp -v v3.8.0
npm ERR! gyp ERR! not ok
npm ERR! Build failed with error code: 1

npm ERR! A complete log of this run can be found in:
npm ERR! /home/rob/.npm/_logs/2021-02-16T00_13_56_833Z-debug.log`

On stack exchange they said I needed to install python 2.7 and node-gyp, because they see it in the error message. I assume this is a config file that is accommodating various types of system, as I have never had either of those on this iteration of Linux Mint 20, as it does no longer ship with python 2.7 and I was able to get up to leve4 of the course without those libraries installed before. please help. I've spent 48 hours currently trying to solve this. My only other option is a full os reinstall as I don't know how node works but it likely leaves some kind of hidden .config file that will perpetuate the issue.

[IntelligentFunction]

It appears that this course is very out of date now as many of the dependencies are failing especially when packages are installed by the student. On this occasion, "date-fns" is problematic and breaks the whole site. Another issue is that node-sass is using an out of date package, but it can't be upgraded to node-sass 5.0.0 due to incompatibility issues. Plurasight should be updating these courses as a paid for platform.

For anyone looking for a workaround, to get to the start of module 05, the library encouraged to install "date-fns" is no longer compatible with the sourcecode due to updates. If you did install date-fns and went through the process of fixing the errors prompted by the install process, this then breaks node-sass 4.9.0 which is 2 years out of date. Current version of node-sass is now 5.0.0, but this is not backward compatible with node-sass 4, so node-sass 4.14.1 will get the node server running. I have not yet gone through the tutorial again to see if there are further issues, but npm install was successful but with deprecation errors.

[mdanieltg]

I am on module 02, presenting the same issue when using npm install and the only thing that worked out was using Yarn instead. I am on Fedora 33 🚀.
Hope this helps.

[ColemanTO]

There is also an option to run NPM with legacy dependencies: npm install --legacy-peer-deps.

[riyajawa]

just install npm install node-sass

[rafaspimenta]

just install npm install node-sass

Thanks! in my case this solution worked very well!

[fieldcommandergraeme]

just install npm install node-sass

Thanks! in my case this solution worked very well!

This doesn't work now, there's a version mismatch between the versions of SASS. Does anyone have an updated fix?

[Kasopej]

just install npm install node-sass

Worked for me, though with lots of warnings. At least I can get through the course. Thanks!

[davilo61]

@Kasopej thanks for the advice above. That worked and allowed me to complete the npm install and serve cmds. Also had a similar issue with another course and I bet that will fix it as well.

[shadyyehia]

These two commands will do the trick:

• npm uninstall node-sass

• npm i -D sass

[receptopalak]

If you run yarn install after deleting the node_modules folder, the problem will be solved.

[YehiaMahmoud]

I think this is working now:

In package.json I replaced
"node-sass": "^4.9.0",
with
"sass": "^1.32.5",

Then npm install

I found this solution in the discussion section by Jason Perry

[kafousis]

I installed node v10.24.1 which is compatible with node-sass 4.9.0 to fix this.
For anyone interested, I use Node Version Manager (nvm) to install and use different versions of node from the terminal which makes it very easy.

xx-final/vue-heroes is running now without problems.

[noman0511]

I think this is working now:

In package.json I replaced "node-sass": "^4.9.0", with "sass": "^1.32.5",

Then npm install

I found this solution in the discussion section by Jason Perry

It worked for me, I am on NodeJS V16.

[vediverg]

These two commands will do the trick:

• npm uninstall node-sass
• npm i -D sass

wow its amazing, how did you get it?