Error building site: POSTCSS: failed to transform "scss/main.css"

Hello,

Currently testing hugo with the docsy theme, but running into a strange problem:

When I run the server:

$ hugo server   

                   | EN  
-------------------+-----
  Pages            | 10  
  Paginator pages  |  0  
  Non-page files   |  0  
  Static files     | 36  
  Processed images |  0  
  Aliases          |  0  
  Sitemaps         |  1  
  Cleaned          |  0  

Built in 211 ms
Watching for changes in /home/mum/aws/hugo/src/{archetypes,content,data,layouts,static,themes}
Watching for config changes in /home/mum/aws/hugo/src/config.toml, /home/mum/aws/hugo/src/themes/docsy/config.toml
Environment: "development"
Serving pages from memory
Running in Fast Render Mode. For full rebuilds on change: hugo server --disableFastRender
Web Server is available at http://localhost:1313/ (bind address 127.0.0.1)
Press Ctrl+C to stop

but when want to build the file only.

hugo        
Total in 217 ms
Error: Error building site: POSTCSS: failed to transform "scss/main.css" (text/css): resource "scss/scss/main.scss_4853eb546e7a6c0898ed71feae7357c0" not found in file cache

Hugo version:

hugo version                                                                                                                                 255 ↵
Hugo Static Site Generator v0.68.3-157669A0/extended linux/amd64 BuildDate: 2020-03-24T12:13:38Z

Any help on this please!

[brettkoonce]

had this, fixed it by installing the npm packages using the -g flag, eg:

sudo npm install -g postcss-cli

after that things started behaving

[helight]

npm install -g postcss-cli
npm install autoprefixer
npm audit fix

[LisaFC]

Yes, if you don't have postcss installed either globally or in the directory where you're running hugo, the asset builds won't work. Hope it's all working now!

[dyllandry]

Error occurring with v0.70.0-7F47B99E windows/amd64:

Building sites … WARN 2020/05/10 22:10:30 found no layout file for "HTML" for kind "page": You should create a template file which matches Hugo Layouts Lookup Rules for this combination.
WARN 2020/05/10 22:10:30 found no layout file for "HTML" for kind "page": You should create a template file which matches Hugo Layouts Lookup Rules for this combination.
WARN 2020/05/10 22:10:30 found no layout file for "HTML" for kind "page": You should create a template file which matches Hugo Layouts Lookup Rules for this combination.
WARN 2020/05/10 22:10:30 found no layout file for "HTML" for kind "page": You should create a template file which matches Hugo Layouts Lookup Rules for this combination.
WARN 2020/05/10 22:10:30 found no layout file for "HTML" for kind "page": You should create a template file which matches Hugo Layouts Lookup Rules for this combination.
WARN 2020/05/10 22:10:30 found no layout file for "HTML" for kind "section": You should create a template file which matches Hugo Layouts Lookup Rules for this combination.
WARN 2020/05/10 22:10:30 found no layout file for "HTML" for kind "taxonomyTerm": You should create a template file which matches Hugo Layouts Lookup Rules for this combination.
WARN 2020/05/10 22:10:30 found no layout file for "HTML" for kind "section": You should create a template file which matches Hugo Layouts Lookup Rules for this combination.
WARN 2020/05/10 22:10:30 found no layout file for "HTML" for kind "taxonomyTerm": You should create a template file which matches Hugo Layouts Lookup Rules for this combination.
WARN 2020/05/10 22:10:30 found no layout file for "HTML" for kind "section": You should create a template file which matches Hugo Layouts Lookup Rules for this combination.
ERROR 2020/05/10 22:10:30 TOCSS: failed to transform "critical.pcss" (/): resource "pcss/critical.pcss_832876c32a71faa43531d9a08ead6e38" not found in file cache
Built in 108 ms
Error: Error building site: failed to render pages: render of "home" failed: "C:\Users\dylan\dev\portfolio-site-3\layouts\_default\baseof.html:9:26": execute of template failed: template: index.html:9:26: executing "index.html" at <$criticalStyle.Content>: error calling Content: TOCSS: failed to transform "critical.pcss" (/): resource "pcss/critical.pcss_832876c32a71faa43531d9a08ead6e38" not found in file cache

Contents of node_modules/.bin:

-rwxr-xr-x 1 dylan 197609 318 May 10 22:02 atob*
-rw-r--r-- 1 dylan 197609 276 May 10 22:02 atob.cmd
-rwxr-xr-x 1 dylan 197609 488 May 10 22:02 atob.ps1*
-rwxr-xr-x 1 dylan 197609 344 May 10 22:09 autoprefixer*
-rw-r--r-- 1 dylan 197609 289 May 10 22:09 autoprefixer.cmd
-rwxr-xr-x 1 dylan 197609 514 May 10 22:09 autoprefixer.ps1*
-rwxr-xr-x 1 dylan 197609 324 May 10 22:02 browserslist*
-rw-r--r-- 1 dylan 197609 279 May 10 22:02 browserslist.cmd
-rwxr-xr-x 1 dylan 197609 494 May 10 22:02 browserslist.ps1*
-rwxr-xr-x 1 dylan 197609 332 May 10 22:02 css-blank-pseudo*
-rw-r--r-- 1 dylan 197609 283 May 10 22:02 css-blank-pseudo.cmd
-rwxr-xr-x 1 dylan 197609 502 May 10 22:02 css-blank-pseudo.ps1*
-rwxr-xr-x 1 dylan 197609 320 May 10 22:02 cssesc*
-rw-r--r-- 1 dylan 197609 277 May 10 22:02 cssesc.cmd
-rwxr-xr-x 1 dylan 197609 490 May 10 22:02 cssesc.ps1*
-rwxr-xr-x 1 dylan 197609 328 May 10 22:02 css-has-pseudo*
-rw-r--r-- 1 dylan 197609 281 May 10 22:02 css-has-pseudo.cmd
-rwxr-xr-x 1 dylan 197609 498 May 10 22:02 css-has-pseudo.ps1*
-rwxr-xr-x 1 dylan 197609 348 May 10 22:02 css-prefers-color-scheme*
-rw-r--r-- 1 dylan 197609 291 May 10 22:02 css-prefers-color-scheme.cmd
-rwxr-xr-x 1 dylan 197609 518 May 10 22:02 css-prefers-color-scheme.ps1*
-rwxr-xr-x 1 dylan 197609 330 May 10 22:02 esparse*
-rw-r--r-- 1 dylan 197609 282 May 10 22:02 esparse.cmd
-rwxr-xr-x 1 dylan 197609 500 May 10 22:02 esparse.ps1*
-rwxr-xr-x 1 dylan 197609 336 May 10 22:02 esvalidate*
-rw-r--r-- 1 dylan 197609 285 May 10 22:02 esvalidate.cmd
-rwxr-xr-x 1 dylan 197609 506 May 10 22:02 esvalidate.ps1*
-rwxr-xr-x 1 dylan 197609 330 May 10 22:02 js-yaml*
-rw-r--r-- 1 dylan 197609 282 May 10 22:02 js-yaml.cmd
-rwxr-xr-x 1 dylan 197609 500 May 10 22:02 js-yaml.ps1*
-rwxr-xr-x 1 dylan 197609 320 May 10 22:02 mkdirp*
-rw-r--r-- 1 dylan 197609 277 May 10 22:02 mkdirp.cmd
-rwxr-xr-x 1 dylan 197609 490 May 10 22:02 mkdirp.ps1*
-rwxr-xr-x 1 dylan 197609 332 May 10 22:02 postcss*
-rw-r--r-- 1 dylan 197609 283 May 10 22:02 postcss.cmd
-rwxr-xr-x 1 dylan 197609 502 May 10 22:02 postcss.ps1*
-rwxr-xr-x 1 dylan 197609 320 May 10 22:02 semver*
-rw-r--r-- 1 dylan 197609 277 May 10 22:02 semver.cmd
-rwxr-xr-x 1 dylan 197609 490 May 10 22:02 semver.ps1*
-rwxr-xr-x 1 dylan 197609 312 May 10 22:02 svgo*
-rw-r--r-- 1 dylan 197609 273 May 10 22:02 svgo.cmd
-rwxr-xr-x 1 dylan 197609 482 May 10 22:02 svgo.ps1*
-rwxr-xr-x 1 dylan 197609 316 May 10 22:02 which*
-rw-r--r-- 1 dylan 197609 275 May 10 22:02 which.cmd
-rwxr-xr-x 1 dylan 197609 486 May 10 22:02 which.ps1*

If it helps, I'm using nvm for windows, cmder, and installed hugo with scoop.

[robinp]

Note: this error also happened for me when trying to use some old node version. 16.x worked.