Warning: Prop `className` did not match. when using styled components with semantic-ui-react

This warning was fixed for me by adding an .babelrc file in the project main folder, with the following content: { “presets”: [“next/babel”], “plugins”: [[“styled-components”, { “ssr”: true }]] } See following link for an example: https://github.com/nblthree/nextjs-with-material-ui-and-styled-components/blob/master/.babelrc

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