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"Cannot find any of modules: sass,node-sass" although `sass` installed

See original GitHub issue

Describe the bug On every single .svelte file the extension throws this error at me (copied from Output tab):

Using Svelte v3.29.0 from /Users/nick/PROJECT_ROOT_REDACTED/node_modules/svelte/compiler
Preprocessing failed
Error: Cannot find any of modules: sass,node-sass

Error: Cannot find module 'node-sass'
Require stack:
- /Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-preprocess/dist/modules/utils.js
- /Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-preprocess/dist/autoProcess.js
- /Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-preprocess/dist/index.js
- /Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-language-server/dist/src/importPackage.js
- /Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-language-server/dist/src/lib/documents/configLoader.js
- /Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-language-server/dist/src/lib/documents/Document.js
- /Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-language-server/dist/src/lib/documents/index.js
- /Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-language-server/dist/src/server.js
- /Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-language-server/bin/server.js
    at Object.importAny (/Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-preprocess/dist/modules/utils.js:30:15)
    at async transformer (/Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-preprocess/dist/transformers/scss.js:18:21)
    at async /Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-preprocess/dist/autoProcess.js:96:29
    at async Object.style (/Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-preprocess/dist/autoProcess.js:142:33)
    at async wrappedPreprocessor.style (/Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-language-server/dist/src/plugins/svelte/SvelteDocument.js:208:33)
    at async /Users/nick/PROJECT_ROOT_REDACTED/node_modules/svelte/compiler.js:27431:32
    at async Promise.all (index 0)
    at async replace_async (/Users/nick/PROJECT_ROOT_REDACTED/node_modules/svelte/compiler.js:27386:52)
    at async Object.preprocess (/Users/nick/PROJECT_ROOT_REDACTED/node_modules/svelte/compiler.js:27427:19)
    at async transpile (/Users/nick/.vscode/extensions/svelte.svelte-vscode-102.2.0/node_modules/svelte-language-server/dist/src/plugins/svelte/SvelteDocument.js:223:25) {
  __source: 'Style'
}

I have svelte-preprocess installed and its settings are in svelte.config.js which looks like this:

// svelte.config.js
const sveltePreprocess = require('svelte-preprocess');

module.exports = {
  preprocess: sveltePreprocess({
    postcss: {
      plugins: [
        require('autoprefixer')
      ]
    },
    sass: {
      sync: true,
      implementation: require('sass'),
    },
  }),
};

I have tried removing implementation and it didn’t work. It also doesn’t work when setting sass: true. I didn’t try using node-sass since I need the Dart implementation specifically.

The error appears even in places without scss code (see screenshot)

To Reproduce Steps to reproduce the behavior:

Install svelte-preprocess and sass
Configure svelte.config.js by setting the sass.implementation to `require(‘sass’)
Open any .svelte file

Expected behavior

The extension doesn’t throw errors

Screenshots grafik

System (please complete the following information):

OS: macOS Catalina 10.15.7
IDE: VSCode 1.50.1
Plugin/Package: “Svelte for VSCode”

Additional context I am developing a Sapper app, not just Svelte.

Issue Analytics

State:
Created 3 years ago
Comments:8 (1 by maintainers)

Top GitHub Comments

7reactions

kyttacommented, Oct 19, 2020

Alright, I feel very dumb 😅

Although I checked before, I missed the old extension by James Birtles which was still installed. Upon removing the old extension and reloading VSCode, the message was gone

4reactions

iamdimitarcommented, Nov 7, 2020

The extension referred to above is Svelte for VS Code.

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