JSX transform works in preview mode, but not in dev

[maicol07]

Describe the bug

Running vite preview works fine and loads the page. Running vite dev gives the following error:

[plugin:vite:import-analysis] Failed to parse source for import analysis because the content contains invalid JS syntax. If you are using JSX, make sure to name the file with the .jsx or .tsx extension.

Reproduction

https://codesandbox.io/p/github/maicol07/MithrilTS-JSX/draft/strange-varahamihira?file=%2Ftsconfig.json&selection=%5B%7B%22endColumn%22%3A37%2C%22endLineNumber%22%3A13%2C%22startColumn%22%3A37%2C%22startLineNumber%22%3A13%7D%5D&workspace=%257B%2522activeFileId%2522%253A%2522cl9s6zw5b000klseyhb0se6g4%2522%252C%2522openFiles%2522%253A%255B%2522%252FREADME.md%2522%252C%2522%252Fpackage.json%2522%252C%2522%252Fsrc%252FApp.tsx%2522%252C%2522%252Fsrc%252FCounter.tsx%2522%252C%2522%252Ftsconfig.json%2522%255D%252C%2522sidebarPanel%2522%253A%2522EXPLORER%2522%252C%2522gitSidebarPanel%2522%253A%2522COMMIT%2522%252C%2522sidekickItems%2522%253A%255B%257B%2522type%2522%253A%2522TERMINAL%2522%252C%2522shellId%2522%253A%2522cl9s766k7000wlseye1f9c3vi%2522%252C%2522key%2522%253A%2522cl9s765y500op3n6zbdaxmig9%2522%252C%2522isMinimized%2522%253Afalse%257D%255D%257D

Steps to reproduce

Click Devtools icon on the navbar (before your user avatar) and go to preview --> log. Try the same with dev

System Info

System:
    OS: Linux 5.4 Debian GNU/Linux 11 (bullseye) 11 (bullseye)
    CPU: (4) x64 AMD EPYC
    Memory: 2.66 GB / 3.85 GB
    Container: Yes
    Shell: 5.1.4 - /bin/bash
  Binaries:
    Node: 16.17.0 - /usr/local/bin/node
    Yarn: 1.22.19 - /opt/pitcher/bin/yarn
    npm: 8.15.0 - /opt/pitcher/bin/npm
    Watchman: 20220528.183901.0 - /usr/local/bin/watchman
  npmPackages:
    vite: ^3 => 3.2.0

Used Package Manager

npm

Logs

Click to expand!

> mithrilts-jsx@1.0.0 dev
> vite --debug

  vite:config bundled config file loaded in 58.53ms +0ms
  vite:esbuild init tsconfck (root: /project/MithrilTS-JSX) +0ms
  vite:esbuild init tsconfck (root: /project/MithrilTS-JSX) +1ms
  vite:esbuild init tsconfck end +1ms
  vite:esbuild init tsconfck end +0ms
  vite:config using resolved config: {
  vite:config   esbuild: { jsx: 'transform', jsxFactory: 'm', jsxFragment: "'['" },
  vite:config   optimizeDeps: {
  vite:config     disabled: 'build',
  vite:config     force: undefined,
  vite:config     esbuildOptions: { preserveSymlinks: false }
  vite:config   },
  vite:config   server: {
  vite:config     preTransformRequests: true,
  vite:config     middlewareMode: false,
  vite:config     fs: { strict: true, allow: [Array], deny: [Array] }
  vite:config   },
  vite:config   configFile: '/project/MithrilTS-JSX/vite.config.ts',
  vite:config   configFileDependencies: [ '/project/MithrilTS-JSX/vite.config.ts' ],
  vite:config   inlineConfig: {
  vite:config     root: undefined,
  vite:config     base: undefined,
  vite:config     mode: undefined,
  vite:config     configFile: undefined,
  vite:config     logLevel: undefined,
  vite:config     clearScreen: undefined,
  vite:config     optimizeDeps: { force: undefined },
  vite:config     server: {}
  vite:config   },
  vite:config   root: '/project/MithrilTS-JSX',
  vite:config   base: '/',
  vite:config   resolve: {
  vite:config     mainFields: [ 'module', 'jsnext:main', 'jsnext' ],
  vite:config     browserField: true,
  vite:config     conditions: [],
  vite:config     extensions: [
  vite:config       '.mjs',  '.js',
  vite:config       '.mts',  '.ts',
  vite:config       '.jsx',  '.tsx',
  vite:config       '.json'
  vite:config     ],
  vite:config     dedupe: [],
  vite:config     preserveSymlinks: false,
  vite:config     alias: [ [Object], [Object] ]
  vite:config   },
  vite:config   publicDir: '/project/MithrilTS-JSX/public',
  vite:config   cacheDir: '/project/MithrilTS-JSX/node_modules/.vite',
  vite:config   command: 'serve',
  vite:config   mode: 'development',
  vite:config   ssr: {
  vite:config     format: 'esm',
  vite:config     target: 'node',
  vite:config     optimizeDeps: { disabled: true, esbuildOptions: [Object] }
  vite:config   },
  vite:config   isWorker: false,
  vite:config   mainConfig: null,
  vite:config   isProduction: false,
  vite:config   plugins: [
  vite:config     'vite:pre-alias',
  vite:config     'alias',
  vite:config     'vite:modulepreload-polyfill',
  vite:config     'vite:optimized-deps',
  vite:config     'vite:resolve',
  vite:config     'vite:html-inline-proxy',
  vite:config     'vite:css',
  vite:config     'vite:esbuild',
  vite:config     'vite:json',
  vite:config     'vite:wasm-helper',
  vite:config     'vite:worker',
  vite:config     'vite:asset',
  vite:config     'vite:wasm-fallback',
  vite:config     'vite:define',
  vite:config     'vite:css-post',
  vite:config     'vite:worker-import-meta-url',
  vite:config     'vite:asset-import-meta-url',
  vite:config     'vite:dynamic-import-vars',
  vite:config     'vite:import-glob',
  vite:config     'vite:client-inject',
  vite:config     'vite:import-analysis'
  vite:config   ],
  vite:config   build: {
  vite:config     target: [ 'es2020', 'edge88', 'firefox78', 'chrome87', 'safari13' ],
  vite:config     cssTarget: [ 'es2020', 'edge88', 'firefox78', 'chrome87', 'safari13' ],
  vite:config     outDir: 'dist',
  vite:config     assetsDir: 'assets',
  vite:config     assetsInlineLimit: 4096,
  vite:config     cssCodeSplit: true,
  vite:config     sourcemap: false,
  vite:config     rollupOptions: {},
  vite:config     minify: 'esbuild',
  vite:config     terserOptions: {},
  vite:config     write: true,
  vite:config     emptyOutDir: null,
  vite:config     copyPublicDir: true,
  vite:config     manifest: false,
  vite:config     lib: false,
  vite:config     ssr: false,
  vite:config     ssrManifest: false,
  vite:config     reportCompressedSize: true,
  vite:config     chunkSizeWarningLimit: 500,
  vite:config     watch: null,
  vite:config     commonjsOptions: { include: [Array], extensions: [Array] },
  vite:config     dynamicImportVarsOptions: { warnOnError: true, exclude: [Array] },
  vite:config     modulePreload: { polyfill: true }
  vite:config   },
  vite:config   preview: {
  vite:config     port: undefined,
  vite:config     strictPort: undefined,
  vite:config     host: undefined,
  vite:config     https: undefined,
  vite:config     open: undefined,
  vite:config     proxy: undefined,
  vite:config     cors: undefined,
  vite:config     headers: undefined
  vite:config   },
  vite:config   env: { BASE_URL: '/', MODE: 'development', DEV: true, PROD: false },
  vite:config   assetsInclude: [Function: assetsInclude],
  vite:config   logger: {
  vite:config     hasWarned: false,
  vite:config     info: [Function: info],
  vite:config     warn: [Function: warn],
  vite:config     warnOnce: [Function: warnOnce],
  vite:config     error: [Function: error],
  vite:config     clearScreen: [Function: clearScreen],
  vite:config     hasErrorLogged: [Function: hasErrorLogged]
  vite:config   },
  vite:config   packageCache: Map(0) {},
  vite:config   createResolver: [Function: createResolver],
  vite:config   worker: {
  vite:config     format: 'iife',
  vite:config     plugins: [
  vite:config       'vite:pre-alias',
  vite:config       'alias',
  vite:config       'vite:modulepreload-polyfill',
  vite:config       'vite:optimized-deps',
  vite:config       'vite:resolve',
  vite:config       'vite:html-inline-proxy',
  vite:config       'vite:css',
  vite:config       'vite:esbuild',
  vite:config       'vite:json',
  vite:config       'vite:wasm-helper',
  vite:config       'vite:worker',
  vite:config       'vite:asset',
  vite:config       'vite:wasm-fallback',
  vite:config       'vite:define',
  vite:config       'vite:css-post',
  vite:config       'vite:worker-import-meta-url',
  vite:config       'vite:asset-import-meta-url',
  vite:config       'vite:dynamic-import-vars',
  vite:config       'vite:import-glob',
  vite:config       'vite:client-inject',
  vite:config       'vite:import-analysis'
  vite:config     ],
  vite:config     rollupOptions: {},
  vite:config     getSortedPlugins: [Function: getSortedPlugins],
  vite:config     getSortedPluginHooks: [Function: getSortedPluginHooks]
  vite:config   },
  vite:config   appType: 'spa',
  vite:config   experimental: { importGlobRestoreExtension: false, hmrPartialAccept: false },
  vite:config   getSortedPlugins: [Function: getSortedPlugins],
  vite:config   getSortedPluginHooks: [Function: getSortedPluginHooks]
  vite:config } +11ms
  vite:deps Hash is consistent. Skipping. Use --force to override. +0ms
Port 5173 is in use, trying another one...
Port 5174 is in use, trying another one...

  VITE v3.2.0  ready in 280 ms

  ➜  Local:   http://localhost:5175/
  ➜  Network: use --host to expose
  vite:html-fallback Rewriting GET / to /index.html +0ms
  vite:time 22.47ms /index.html +0ms
  vite:resolve 1.84ms /@vite/client -> /project/MithrilTS-JSX/node_modules/vite/dist/client/client.mjs +0ms
  vite:load 1.19ms [fs] /@vite/client +0ms
  vite:resolve 0.41ms @vite/env -> /project/MithrilTS-JSX/node_modules/vite/dist/client/env.mjs +28ms
  vite:resolve 0.12ms /node_modules/vite/dist/client/env.mjs -> /project/MithrilTS-JSX/node_modules/vite/dist/client/env.mjs +0ms
  vite:import-analysis 4.09ms [1 imports rewritten] node_modules/vite/dist/client/client.mjs +0ms
  vite:transform 26.49ms /@vite/client +0ms
  vite:time 33.72ms /@vite/client +266ms
  vite:resolve 0.30ms /src/index.ts -> /project/MithrilTS-JSX/src/index.ts +4ms
  vite:load 1.62ms [fs] /node_modules/vite/dist/client/env.mjs +31ms
  vite:load 0.90ms [fs] /src/index.ts +0ms
  vite:import-analysis 0.06ms [no imports] node_modules/vite/dist/client/env.mjs +5ms
  vite:transform 1.23ms /node_modules/vite/dist/client/env.mjs +5ms
  vite:resolve 0.21ms mithril -> /project/MithrilTS-JSX/node_modules/.vite/deps/mithril.js?v=f2dff326 +7ms
  vite:resolve 0.06ms /node_modules/.vite/deps/mithril.js?v=f2dff326 -> /project/MithrilTS-JSX/node_modules/.vite/deps/mithril.js?v=f2dff326 +0ms
  vite:import-analysis /node_modules/.vite/deps/mithril.js?v=f2dff326 needs interop +5ms
  vite:resolve 3.23ms ./App -> /project/MithrilTS-JSX/src/App.tsx +5ms
  vite:resolve 0.10ms /src/App.tsx -> /project/MithrilTS-JSX/src/App.tsx +1ms
  vite:import-analysis 6.54ms [2 imports rewritten] src/index.ts +6ms
  vite:transform 11.70ms /src/index.ts +11ms
  vite:time 13.59ms /src/index.ts +15ms
  vite:optimize-deps load /project/MithrilTS-JSX/node_modules/.vite/deps/mithril.js +0ms
  vite:load 0.76ms [plugin] /node_modules/.vite/deps/mithril.js?v=f2dff326 +14ms
  vite:import-analysis 1.18ms [no imports] node_modules/.vite/deps/mithril.js?v=f2dff326 +3ms
  vite:transform 1.74ms /node_modules/.vite/deps/mithril.js?v=f2dff326 +3ms
  vite:load 2.77ms [fs] /src/App.tsx +2ms
Failed to parse source for import analysis because the content contains invalid JS syntax. If you are using JSX, make sure to name the file with the .jsx or .tsx extension.
  vite:cache [304] /src/index.ts +0ms
  vite:time 0.32ms /src/index.ts +139ms
  vite:cache [304] /@vite/client +14ms
  vite:time 0.33ms /@vite/client +14ms
  vite:deps ✨ static imports crawl ended +8s
  vite:cache [memory] /node_modules/vite/dist/client/env.mjs +0ms
  vite:time 0.70ms /node_modules/vite/dist/client/env.mjs +258ms
  vite:load 0.43ms [fs] /src/App.tsx +424ms
8:29:11 AM [vite] Internal server error: Failed to parse source for import analysis because the content contains invalid JS syntax. If you are using JSX, make sure to name the file with the .jsx or .tsx extension.
  Plugin: vite:import-analysis
  File: /project/MithrilTS-JSX/src/App.tsx:12:11
  6  |      view: () => {
  7  |        return <>
  8  |          <h1>My Mithril App</h1>
     |                                 ^
  9  |          <Counter />
  10 |          <Friends />
      at formatError (file:///project/MithrilTS-JSX/node_modules/vite/dist/node/chunks/dep-61d2428a.js:42899:46)
      at TransformContext.error (file:///project/MithrilTS-JSX/node_modules/vite/dist/node/chunks/dep-61d2428a.js:42895:19)
      at TransformContext.transform (file:///project/MithrilTS-JSX/node_modules/vite/dist/node/chunks/dep-61d2428a.js:39696:22)
      at processTicksAndRejections (node:internal/process/task_queues:96:5)
      at async Object.transform (file:///project/MithrilTS-JSX/node_modules/vite/dist/node/chunks/dep-61d2428a.js:43148:30)
      at async loadAndTransform (file:///project/MithrilTS-JSX/node_modules/vite/dist/node/chunks/dep-61d2428a.js:39539:29)
  vite:time 16.21ms /src/App.tsx +33ms
  vite:cache [memory] /node_modules/.vite/deps/mithril.js?v=f2dff326 +34ms
  vite:time 0.50ms /node_modules/.vite/deps/mithril.js?v=f2dff326 +1ms
  vite:cache [304] /node_modules/vite/dist/client/env.mjs +416ms
  vite:time 0.82ms /node_modules/vite/dist/client/env.mjs +125ms
  vite:load 0.51ms [fs] /src/App.tsx +165ms
8:29:11 AM [vite] Internal server error: Failed to parse source for import analysis because the content contains invalid JS syntax. If you are using JSX, make sure to name the file with the .jsx or .tsx extension.
  Plugin: vite:import-analysis
  File: /project/MithrilTS-JSX/src/App.tsx:12:11
  6  |      view: () => {
  7  |        return <>
  8  |          <h1>My Mithril App</h1>
     |                                 ^
  9  |          <Counter />
  10 |          <Friends />
      at formatError (file:///project/MithrilTS-JSX/node_modules/vite/dist/node/chunks/dep-61d2428a.js:42899:46)
      at TransformContext.error (file:///project/MithrilTS-JSX/node_modules/vite/dist/node/chunks/dep-61d2428a.js:42895:19)
      at TransformContext.transform (file:///project/MithrilTS-JSX/node_modules/vite/dist/node/chunks/dep-61d2428a.js:39696:22)
      at processTicksAndRejections (node:internal/process/task_queues:96:5)
      at async Object.transform (file:///project/MithrilTS-JSX/node_modules/vite/dist/node/chunks/dep-61d2428a.js:43148:30)
      at async loadAndTransform (file:///project/MithrilTS-JSX/node_modules/vite/dist/node/chunks/dep-61d2428a.js:39539:29) (x2)
  vite:time 4.87ms /src/App.tsx +27ms
  vite:html-fallback Not rewriting GET /favicon.ico because the path includes a dot (.) character. +1s
  vite:time 0.63ms /favicon.ico +341ms

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[sapphi-red]

I guess this is because you are setting "jsx": "preserve" in tsconfig.
You need to set "jsx": "react" instead.

[maicol07]

Works, thanks! Should this be documented in docs or reported in the error message?

[sapphi-red]

We reverted this for Vite 3. I'll add some documentation related to this when we re-introduce this 👍