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[Bug] TypeError: Failed exporting HTML for URL Cannot convert undefined or null to object

See original GitHub issue

Reporting a bug?

Fresh install of React Static using the “basic” template. Tried running npm build

D:\Documents\Repositories\react-static\test-site>npm run build

> react-static-example-basic@ build D:\Documents\Repositories\react-static\test-site
> react-static build

Bundling application for Production...

Cleaning dist...
[✓] Dist cleaned (0.5s)
Cleaning artifacts...
[✓] Artifacts cleaned
Building Routes...
Importing routes from directory...
[✓] Routes Built (0.8s)
Building Templates...
[✓] Templates Built
Copying public directory...
[✓] Public directory copied
Bundling App...
[✓] App Bundled (14.8s)
Fetching Site Data...
[✓] Site Data Downloaded
Fetching Route Data...
[==========================================================================================] 107/107 100% 17833/s 0.0s
[✓] Route Data Downloaded (0.2s)
Exporting HTML across 8 threads...
  TypeError: Failed exporting HTML for URL D:/Documents/Repositories/react-static/test-site/src/pages/blog (../src/pages  /blog.js): Cannot convert undefined or null to object

  - Function.keys

  - Routes.js:38 keys
    [test-site]/[react-static]/src/browser/components/Routes.js:38:14

  - react-dom-server.node.production.min.js:26 ya
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:26:264

  - react-dom-server.node.production.min.js:29 Object.useState
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:29:82

  - react.production.min.js:23 useState
    [test-site]/[react]/cjs/react.production.min.js:23:312

  - Routes.js:27 RoutesInner
    [test-site]/[react-static]/src/browser/components/Routes.js:27:3

  - react-dom-server.node.production.min.js:33 c
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:33:501

  - react-dom-server.node.production.min.js:36 Sa
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:36:1

  - react-dom-server.node.production.min.js:41 a.render
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:467

  - react-dom-server.node.production.min.js:41 a.read
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:58

  - react-dom-server.node.production.min.js:53 renderToString
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:53:83

  - exportRoute.js:137 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:137:21

  - exportRoute.js:192 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:192:15

  - runtime.js:45 tryCatch
    [test-site]/[regenerator-runtime]/runtime.js:45:40

  - runtime.js:271 Generator.invoke [as _invoke]
    [test-site]/[regenerator-runtime]/runtime.js:271:22

  - runtime.js:97 Generator.prototype.(anonymous function) [as next]
    [test-site]/[regenerator-runtime]/runtime.js:97:21

  - asyncToGenerator.js:3 asyncGeneratorStep
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:3:24

  - asyncToGenerator.js:25 _next
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:25:9


  - next_tick.js:188 process._tickCallback
    internal/process/next_tick.js:188:7


  Error:

  TypeError: Failed exporting HTML for URL 404 (../node_modules/react-static/lib/browser/components/Default404): Cannot   convert undefined or null to object

  - Function.keys

  - Routes.js:38 keys
    [test-site]/[react-static]/src/browser/components/Routes.js:38:14

  - react-dom-server.node.production.min.js:26 ya
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:26:264

  - react-dom-server.node.production.min.js:29 Object.useState
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:29:82

  - react.production.min.js:23 useState
    [test-site]/[react]/cjs/react.production.min.js:23:312

  - Routes.js:27 RoutesInner
    [test-site]/[react-static]/src/browser/components/Routes.js:27:3

  - react-dom-server.node.production.min.js:33 c
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:33:501

  - react-dom-server.node.production.min.js:36 Sa
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:36:1

  - react-dom-server.node.production.min.js:41 a.render
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:467

  - react-dom-server.node.production.min.js:41 a.read
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:58

  - react-dom-server.node.production.min.js:53 renderToString
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:53:83

  - exportRoute.js:137 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:137:21

  - exportRoute.js:192 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:192:15

  - runtime.js:45 tryCatch
    [test-site]/[regenerator-runtime]/runtime.js:45:40

  - runtime.js:271 Generator.invoke [as _invoke]
    [test-site]/[regenerator-runtime]/runtime.js:271:22

  - runtime.js:97 Generator.prototype.(anonymous function) [as next]
    [test-site]/[regenerator-runtime]/runtime.js:97:21

  - asyncToGenerator.js:3 asyncGeneratorStep
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:3:24

  - asyncToGenerator.js:25 _next
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:25:9


  - next_tick.js:188 process._tickCallback
    internal/process/next_tick.js:188:7


  TypeError: Failed exporting HTML for URL D:/Documents/Repositories/react-static/test-site/src/pages (../src/pages/inde  x.js): Cannot convert undefined or null to object

  - Function.keys

  - Routes.js:38 keys
    [test-site]/[react-static]/src/browser/components/Routes.js:38:14

  - react-dom-server.node.production.min.js:26 ya
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:26:264

  - react-dom-server.node.production.min.js:29 Object.useState
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:29:82

  - react.production.min.js:23 useState
    [test-site]/[react]/cjs/react.production.min.js:23:312

  - Routes.js:27 RoutesInner
    [test-site]/[react-static]/src/browser/components/Routes.js:27:3

  - react-dom-server.node.production.min.js:33 c
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:33:501

  - react-dom-server.node.production.min.js:36 Sa
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:36:1

  - react-dom-server.node.production.min.js:41 a.render
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:467

  - react-dom-server.node.production.min.js:41 a.read
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:58

  - react-dom-server.node.production.min.js:53 renderToString
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:53:83

  - exportRoute.js:137 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:137:21

  - exportRoute.js:192 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:192:15

  - runtime.js:45 tryCatch
    [test-site]/[regenerator-runtime]/runtime.js:45:40

  - runtime.js:271 Generator.invoke [as _invoke]
    [test-site]/[regenerator-runtime]/runtime.js:271:22

  - runtime.js:97 Generator.prototype.(anonymous function) [as next]
    [test-site]/[regenerator-runtime]/runtime.js:97:21

  - asyncToGenerator.js:3 asyncGeneratorStep
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:3:24

  - asyncToGenerator.js:25 _next
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:25:9


  - next_tick.js:188 process._tickCallback
    internal/process/next_tick.js:188:7


  TypeError: Failed exporting HTML for URL blog/post/2 (../src/containers/Post): Cannot convert undefined or null to obj  ect

  - Function.keys

  - Routes.js:38 keys
    [test-site]/[react-static]/src/browser/components/Routes.js:38:14

  - react-dom-server.node.production.min.js:26 ya
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:26:264

  - react-dom-server.node.production.min.js:29 Object.useState
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:29:82

  - react.production.min.js:23 useState
    [test-site]/[react]/cjs/react.production.min.js:23:312

  - Routes.js:27 RoutesInner
    [test-site]/[react-static]/src/browser/components/Routes.js:27:3

  - react-dom-server.node.production.min.js:33 c
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:33:501

  - react-dom-server.node.production.min.js:36 Sa
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:36:1

  - react-dom-server.node.production.min.js:41 a.render
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:467

  - react-dom-server.node.production.min.js:41 a.read
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:58

  - react-dom-server.node.production.min.js:53 renderToString
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:53:83

  - exportRoute.js:137 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:137:21

  - exportRoute.js:192 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:192:15

  - runtime.js:45 tryCatch
    [test-site]/[regenerator-runtime]/runtime.js:45:40

  - runtime.js:271 Generator.invoke [as _invoke]
    [test-site]/[regenerator-runtime]/runtime.js:271:22

  - runtime.js:97 Generator.prototype.(anonymous function) [as next]
    [test-site]/[regenerator-runtime]/runtime.js:97:21

  - asyncToGenerator.js:3 asyncGeneratorStep
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:3:24

  - asyncToGenerator.js:25 _next
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:25:9


  - next_tick.js:188 process._tickCallback
    internal/process/next_tick.js:188:7


  TypeError: Failed exporting HTML for URL / (../src/App): Cannot convert undefined or null to object

  - Function.keys

  - Routes.js:38 keys
    [test-site]/[react-static]/src/browser/components/Routes.js:38:14

  - react-dom-server.node.production.min.js:26 ya
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:26:264

  - react-dom-server.node.production.min.js:29 Object.useState
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:29:82

  - react.production.min.js:23 useState
    [test-site]/[react]/cjs/react.production.min.js:23:312

  - Routes.js:27 RoutesInner
    [test-site]/[react-static]/src/browser/components/Routes.js:27:3

  - react-dom-server.node.production.min.js:33 c
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:33:501

  - react-dom-server.node.production.min.js:36 Sa
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:36:1

  - react-dom-server.node.production.min.js:41 a.render
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:467

  - react-dom-server.node.production.min.js:41 a.read
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:58

  - react-dom-server.node.production.min.js:53 renderToString
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:53:83

  - exportRoute.js:137 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:137:21

  - exportRoute.js:192 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:192:15

  - runtime.js:45 tryCatch
    [test-site]/[regenerator-runtime]/runtime.js:45:40

  - runtime.js:271 Generator.invoke [as _invoke]
    [test-site]/[regenerator-runtime]/runtime.js:271:22

  - runtime.js:97 Generator.prototype.(anonymous function) [as next]
    [test-site]/[regenerator-runtime]/runtime.js:97:21

  - asyncToGenerator.js:3 asyncGeneratorStep
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:3:24

  - asyncToGenerator.js:25 _next
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:25:9


  - next_tick.js:188 process._tickCallback
    internal/process/next_tick.js:188:7


  TypeError: Failed exporting HTML for URL D:/Documents/Repositories/react-static/test-site/src/pages/404 (../src/pages/  404.js): Cannot convert undefined or null to object

  - Function.keys

  - Routes.js:38 keys
    [test-site]/[react-static]/src/browser/components/Routes.js:38:14

  - react-dom-server.node.production.min.js:26 ya
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:26:264

  - react-dom-server.node.production.min.js:29 Object.useState
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:29:82

  - react.production.min.js:23 useState
    [test-site]/[react]/cjs/react.production.min.js:23:312

  - Routes.js:27 RoutesInner
    [test-site]/[react-static]/src/browser/components/Routes.js:27:3

  - react-dom-server.node.production.min.js:33 c
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:33:501

  - react-dom-server.node.production.min.js:36 Sa
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:36:1

  - react-dom-server.node.production.min.js:41 a.render
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:467

  - react-dom-server.node.production.min.js:41 a.read
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:58

  - react-dom-server.node.production.min.js:53 renderToString
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:53:83

  - exportRoute.js:137 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:137:21

  - exportRoute.js:192 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:192:15

  - runtime.js:45 tryCatch
    [test-site]/[regenerator-runtime]/runtime.js:45:40

  - runtime.js:271 Generator.invoke [as _invoke]
    [test-site]/[regenerator-runtime]/runtime.js:271:22

  - runtime.js:97 Generator.prototype.(anonymous function) [as next]
    [test-site]/[regenerator-runtime]/runtime.js:97:21

  - asyncToGenerator.js:3 asyncGeneratorStep
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:3:24

  - asyncToGenerator.js:25 _next
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:25:9


  - next_tick.js:188 process._tickCallback
    internal/process/next_tick.js:188:7


  TypeError: Failed exporting HTML for URL blog/post/1 (../src/containers/Post): Cannot convert undefined or null to obj  ect

  - Function.keys

  - Routes.js:38 keys
    [test-site]/[react-static]/src/browser/components/Routes.js:38:14

  - react-dom-server.node.production.min.js:26 ya
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:26:264

  - react-dom-server.node.production.min.js:29 Object.useState
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:29:82

  - react.production.min.js:23 useState
    [test-site]/[react]/cjs/react.production.min.js:23:312

  - Routes.js:27 RoutesInner
    [test-site]/[react-static]/src/browser/components/Routes.js:27:3

  - react-dom-server.node.production.min.js:33 c
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:33:501

  - react-dom-server.node.production.min.js:36 Sa
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:36:1

  - react-dom-server.node.production.min.js:41 a.render
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:467

  - react-dom-server.node.production.min.js:41 a.read
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:58

  - react-dom-server.node.production.min.js:53 renderToString
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:53:83

  - exportRoute.js:137 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:137:21

  - exportRoute.js:192 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:192:15

  - runtime.js:45 tryCatch
    [test-site]/[regenerator-runtime]/runtime.js:45:40

  - runtime.js:271 Generator.invoke [as _invoke]
    [test-site]/[regenerator-runtime]/runtime.js:271:22

  - runtime.js:97 Generator.prototype.(anonymous function) [as next]
    [test-site]/[regenerator-runtime]/runtime.js:97:21

  - asyncToGenerator.js:3 asyncGeneratorStep
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:3:24

  - asyncToGenerator.js:25 _next
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:25:9


  - next_tick.js:188 process._tickCallback
    internal/process/next_tick.js:188:7


  TypeError: Failed exporting HTML for URL D:/Documents/Repositories/react-static/test-site/src/pages/about (../src/page  s/about.js): Cannot convert undefined or null to object

  - Function.keys

  - Routes.js:38 keys
    [test-site]/[react-static]/src/browser/components/Routes.js:38:14

  - react-dom-server.node.production.min.js:26 ya
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:26:264

  - react-dom-server.node.production.min.js:29 Object.useState
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:29:82

  - react.production.min.js:23 useState
    [test-site]/[react]/cjs/react.production.min.js:23:312

  - Routes.js:27 RoutesInner
    [test-site]/[react-static]/src/browser/components/Routes.js:27:3

  - react-dom-server.node.production.min.js:33 c
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:33:501

  - react-dom-server.node.production.min.js:36 Sa
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:36:1

  - react-dom-server.node.production.min.js:41 a.render
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:467

  - react-dom-server.node.production.min.js:41 a.read
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:41:58

  - react-dom-server.node.production.min.js:53 renderToString
    [test-site]/[react-dom]/cjs/react-dom-server.node.production.min.js:53:83

  - exportRoute.js:137 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:137:21

  - exportRoute.js:192 renderToStringAndExtract
    [test-site]/[react-static]/src/static/exportRoute.js:192:15

  - runtime.js:45 tryCatch
    [test-site]/[regenerator-runtime]/runtime.js:45:40

  - runtime.js:271 Generator.invoke [as _invoke]
    [test-site]/[regenerator-runtime]/runtime.js:271:22

  - runtime.js:97 Generator.prototype.(anonymous function) [as next]
    [test-site]/[regenerator-runtime]/runtime.js:97:21

  - asyncToGenerator.js:3 asyncGeneratorStep
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:3:24

  - asyncToGenerator.js:25 _next
    [test-site]/[@babel]/runtime/helpers/asyncToGenerator.js:25:9


  - next_tick.js:188 process._tickCallback
    internal/process/next_tick.js:188:7

Environment


  System:
    OS: Windows 10
    CPU: (8) x64 AMD FX(tm)-8350 Eight-Core Processor
    Memory: 16.02 GB / 31.98 GB
  Binaries:
    Node: 8.9.4 - C:\Program Files\nodejs\node.EXE
    npm: 5.3.0 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Edge: 44.17763.1.0
    Internet Explorer: 11.0.17763.1
  npmPackages:
    react: ^16.8.2 => 16.8.6
    react-dom: ^16.8.2 => 16.8.6
    react-static: ^7.0.0 => 7.0.7
    react-static-plugin-reach-router: ^7.0.0 => 7.0.7
    react-static-plugin-sitemap: ^7.0.0 => 7.0.0
    react-static-plugin-source-filesystem: ^7.0.0 => 7.0.0

Steps to Reproduce the problem

Base your steps off of any freshly installed react-static template!

  1. Create react-static application using the “basic” template
  2. Run npm run build

Expected Behavior

Built site, no errors

Issue Analytics

  • State:closed
  • Created 4 years ago
  • Reactions:1
  • Comments:11 (10 by maintainers)

github_iconTop GitHub Comments

1reaction
SleeplessBytecommented, Apr 16, 2019

This might actually have been the issue. Chunkbuilding completely failed on windows. Since that only happens (like that) when you try to pre-render the routes, I suspect this is what caused the failures.

1reaction
SleeplessBytecommented, Apr 15, 2019

@tannerlinsley Yes, I do un for tu nat ly.

I’ll report back tomorrow.

Read more comments on GitHub >

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