Error in Typescript: JSX can only be used with the '--jsx' flag enabled

I am currently working on my NextJS app with enabled Typescript. Below is a snippet of my tsconfig.json file:

{
  "compilerOptions": {
    "target": "es6",
    "baseUrl": ".",
    "lib": ["dom", "dom.iterable", "esnext"],
    "allowJs": true,
    "skipLibCheck": true,
    "strict": false, // Changing this to true checks new files
    "noImplicitAny": false, // Changing this to true checks new files
    "forceConsistentCasingInFileNames": true,
    "noEmit": true,
    "incremental": true,
    "esModuleInterop": true,
    "module": "esnext",
    "moduleResolution": "nodenext",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "jsx": "preserve",
    "paths": {
      "@/icons/*": ["ui/icons/*"]
    }
  },
  "include": ["next-env.d.ts", "**/*"],
  "exclude": ["node_modules", ".next", "out", "cypress"]
}

Additionally, here is my next.config.js configuration:

const NextConfig = {
  reactStrictMode: true,
  eslint: {
    ignoreDuringBuilds: true,
  },
  typescript: {
    ignoreBuildErrors: true,
  },
  images: {
    path: `https://${customImageOptimizationDomain}/_next/image`,
    domains: allowedExternalDomainsForImage,
  },
  webpack(config) {
    config.module.rules.push({
      test: /\.svg$/,
      use: ['@svgr/webpack'],
    })

    return config
  },
}

const withBundleAnalyzer = require('@next/bundle-analyzer')({
  enabled: process.env.ANALYZE === 'true',
})

const nextConfigHOC = nextTranslate(withBundleAnalyzer(NextConfig))

module.exports = nextConfigHOC

During my commit, when checking for errors with the following lint-staged configuration:

"lint-staged": {
    "**/*.{ts,tsx}": [
      "tsc --noEmit"
    ]
  },

I encountered two types of errors:

  •  ui/features/navbar/signout.tsx(27,7): error TS17004: Cannot use JSX unless the '--jsx' flag is provided.
  •  error TS2307: Cannot find module '@/icons/navbar/logout.svg' or its corresponding type declarations.

Interestingly, I did not see these errors in VSCode but only during commits. Any insights or help would be greatly appreciated!

I am looking to resolve these errors and avoid encountering them in the future.

Answer №1

Did you give "tsc --noEmit --jsx" a shot?

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