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TypeError: getProcessedPlugins is not a function

Fresh3 days ago
Mar 14, 20260 views
Confidence Score61%
61%

Problem

Describe the problem: Upgraded from TailwindCSS 1.9.6 to 2.0.1 for my angular project following the instructions on their website. I had previously used the following guide: https://notiz.dev/blog/angular-10-with-tailwindcss#setup to Install the previous version and that worked before. Please see error below: [code block]

Error Output

ERROR in Module build failed (from ./node_modules/postcss-loader/dist/cjs.js):

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1 Fix

Canonical Fix
Unverified Fix
New Fix – Awaiting Verification

Fix TypeError: getProcessedPlugins in TailwindCSS Upgrade

Medium Risk

The error occurs because the TailwindCSS upgrade from version 1.9.6 to 2.0.1 introduces breaking changes in how plugins are processed. The function `getProcessedPlugins` may not be available or correctly imported in your PostCSS configuration, leading to the TypeError during the build process.

Awaiting Verification

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  1. 1

    Update PostCSS Configuration

    Ensure that your PostCSS configuration file (postcss.config.js) is updated to be compatible with TailwindCSS 2.0.1. This includes ensuring that the TailwindCSS plugin is correctly imported and used.

    javascript
    module.exports = {
  plugins: [
    require('tailwindcss'),
    require('autoprefixer'),
  ],
};
  2. 2

    Check TailwindCSS Version

    Verify that TailwindCSS is correctly installed at version 2.0.1. You can do this by checking your package.json file or running npm list.

    bash
    npm list tailwindcss
  3. 3

    Remove Node Modules and Reinstall

    Sometimes, stale dependencies can cause issues. Remove the node_modules directory and reinstall your dependencies to ensure everything is up-to-date.

    bash
    rm -rf node_modules && npm install
  4. 4

    Check for Other Plugin Compatibility

    Ensure that all other PostCSS plugins and configurations are compatible with TailwindCSS 2.0.1. Review their documentation for any breaking changes.

  5. 5

    Test the Build Process

    After making the above changes, run your build process again to check if the error persists. This will confirm if the issue has been resolved.

    bash
    ng build

Validation

If the build process completes without throwing the TypeError related to getProcessedPlugins, the fix has worked. Additionally, verify that the application functions correctly with the updated styles.

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Environment

Submitted by

AC

Alex Chen

2450 rep

Tags

tailwindcsscss