Answered on : 2024-01-23
1. Check if a `tailwind.config.js` file exists; its absence may cause the error[2].
2. After updating packages, ensure compatibility by resolving issues with postcss-import[3].
3. Verify the presence and proper configuration of postcss[5].
4. If using Webpack, address a potential bug related to `postcss` property in the webpack configuration[6].
5. Consider enabling PostCSS Parser support in CSS-in-JS by adjusting the `postcss-loader` settings[8].
Remember to check your project's specific requirements and configurations to pinpoint the exact cause of the issue.
[2]: GitHub - Tailwind CSS Issue
[3]: GitHub - PostCSS-Import Issue
[6]: Lightrun Forum
[8]: npm - PostCSS-Loader