path.replace is not a function

[RavinduDharmasena]

When I try to to prefix a css using the command postcss --use autoprefixer -b 'last 10 versions' style.concat.css -o css/style.prefix.css, it throws following error.

TypeError: path.replace is not a function                                                                                   
      at module.exports (G:\sass_course_projects\Natours_Media_Queries\node_modules\slash\index.js:10:14)                     
      at Array.map (<anonymous>)                                                                                              
      at G:\sass_course_projects\Natours_Media_Queries\node_modules\postcss-cli\index.js:66:28                            
npm ERR! code ELIFECYCLE                                                                                               
npm ERR! errno 1                                                                                                        
npm ERR! natours@1.0.0 prefix:css: `postcss --use autoprefixer -b 'last 10 versions' style.concat.css -o css/style.prefix.css`                                                                                                                  npm ERR! Exit status 1                                                                                                  
npm ERR!                                                                                                                
npm ERR! Failed at the natours@1.0.0 prefix:css 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\ACER\AppData\Roaming\npm-cache\_logs\2020-12-03T11_27_52_699Z-debug.log 

given below is the debug log file content

``` 0 info it worked if it ends with ok 1 verbose cli [ 1 verbose cli 'C:\\Program Files\\nodejs\\node.exe', 1 verbose cli 'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js', 1 verbose cli 'run', 1 verbose cli 'prefix:css' 1 verbose cli ] 2 info using npm@6.14.8 3 info using node@v12.19.0 4 verbose run-script [ 'prefix:css' ] 5 info lifecycle natours@1.0.0~prefix:css: natours@1.0.0 6 verbose lifecycle natours@1.0.0~prefix:css: unsafe-perm in lifecycle true 7 verbose lifecycle natours@1.0.0~prefix:css: PATH: C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;G:\sass_course_projects\Natours_Media_Queries\node_modules\.bin;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\ProgramData\ComposerSetup\bin;C:\Program Files\Git\cmd;C:\Program Files\nodejs\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;G:\xampp_PHP5\php;G:\xampp\php;C:\Users\ACER\AppData\Local\Microsoft\WindowsApps;;C:\Users\ACER\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\ACER\AppData\Roaming\Composer\vendor\bin;C:\Users\ACER\AppData\Roaming\npm 8 verbose lifecycle natours@1.0.0~prefix:css: CWD: G:\sass_course_projects\Natours_Media_Queries 9 silly lifecycle natours@1.0.0~prefix:css: Args: [ 9 silly lifecycle '/d /s /c', 9 silly lifecycle "postcss --use autoprefixer -b 'last 10 versions' style.concat.css -o css/style.prefix.css" 9 silly lifecycle ] 10 silly lifecycle natours@1.0.0~prefix:css: Returned: code: 1 signal: null 11 info lifecycle natours@1.0.0~prefix:css: Failed to exec prefix:css script 12 verbose stack Error: natours@1.0.0 prefix:css: `postcss --use autoprefixer -b 'last 10 versions' style.concat.css -o css/style.prefix.css` 12 verbose stack Exit status 1 12 verbose stack at EventEmitter. (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\index.js:332:16) 12 verbose stack at EventEmitter.emit (events.js:314:20) 12 verbose stack at ChildProcess. (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14) 12 verbose stack at ChildProcess.emit (events.js:314:20) 12 verbose stack at maybeClose (internal/child_process.js:1021:16) 12 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5) 13 verbose pkgid natours@1.0.0 14 verbose cwd G:\sass_course_projects\Natours_Media_Queries 15 verbose Windows_NT 10.0.19042 16 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "prefix:css" 17 verbose node v12.19.0 18 verbose npm v6.14.8 19 error code ELIFECYCLE 20 error errno 1 21 error natours@1.0.0 prefix:css: `postcss --use autoprefixer -b 'last 10 versions' style.concat.css -o css/style.prefix.css` 21 error Exit status 1 22 error Failed at the natours@1.0.0 prefix:css script. 22 error This is probably not a problem with npm. There is likely additional logging output above. 23 verbose exit [ 1, true ] ```

[RyanZim]

I cannot reproduce on Linux; so I'll need you to help me debug this.

If you edit node_modules\postcss-cli\index.js line 64 to read console.warn(input) and run again, what is the output?

https://github.com/postcss/postcss-cli/blob/453aaec22c02064693ec8ee4d704a33ead27b97a/index.js#L61-L67

[RavinduDharmasena]

This is the output that I have got after following your instructions.

[ 10, "versions'", 'css/style.concat.css' ]
TypeError: path.replace is not a function
at module.exports (G:\sass_course_projects\Natours_Media_Queries\node_modules\slash\index.js:10:14)
at Array.map ()
at G:\sass_course_projects\Natours_Media_Queries\node_modules\postcss-cli\index.js:66:28
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! natours@1.0.0 prefix:css: postcss --use autoprefixer -b 'last 10 versions' css/style.concat.css -o css/style.prefix.css
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the natours@1.0.0 prefix:css 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\ACER\AppData\Roaming\npm-cache_logs\2020-12-03T16_10_37_158Z-debug.log

[RyanZim]

My bad, I should have seen that from just looking at your initial post. Your problem is that you're using single quotes around last 10 versions. Windows doesn't recognize single quotes as quotes on the command line; using double-quotes should make it work.

Also, you'll want to delete node_modules and reinstall to undo the changes I requested.

[RyanZim]

Note to self: perhaps should cast to string before running through slash to give a more intelligent error message in this case.

[RavinduDharmasena]

It works when I Replaced single quotes with doubles quotes with escape characters as mentioned by you. Thank you so much for the solution.