Entry module not found: Error: Can't resolve 'prerender-loader'

[JaceHensley]

Hey there! So this is probably something I'm doing wrong but I'd appreciate any help.

This is what I have in my plugins section

...routes.map(url =>
  new HtmlWebpackPlugin({
    filename: `${paths.clientPublic}${url}index.html`,
    template: `!!prerender-loader?string!${paths.clientHtml}`,
  })
),

This is the error I am getting

Error: Child compilation failed:
  Entry module not found: Error: Can't resolve 'prerender-loader' in '/Users/jace/...':
  Error: Can't resolve 'prerender-loader' in '/Users/jace/...'

I have installed via yarn add --dev https://github.com/havenchyk/prerender-loader#47a6ec31715930a17ed5eca8d4637f0d57707ed5 (because I need the multiple entry support)

Any help would be great, thank you!

[jesperjohansson]

Try cding into node_modules/prerender-loader and run yarn and yarn build and then try again

[JaceHensley]

So I get a different error when I do that. During build (within node_modules/prerender-loader) I get the following:

yarn build                                                                                                                                                                           23s 883ms
yarn run v1.7.0
$ microbundle -f cjs --no-compress --external all
'os' is imported by src/index.js, but could not be resolved – treating it as an external dependency
'webpack/lib/LibraryTemplatePlugin' is imported by src/index.js, but could not be resolved – treating it as an external dependency
'webpack/lib/node/NodeTemplatePlugin' is imported by src/index.js, but could not be resolved – treating it as an external dependency
'webpack/lib/node/NodeTargetPlugin' is imported by src/index.js, but could not be resolved – treating it as an external dependency
'webpack/lib/SingleEntryPlugin' is imported by src/index.js, but could not be resolved – treating it as an external dependency
Build output to dist:
      2.49 kB: prerender-loader.js
✨  Done in 1.83s.

And then when I start my client up I get this:

Error: Child compilation failed:
  Module build failed: TypeError: Cannot read property 'compilation' of undefined

  - DefinePlugin.js:51 DefinePlugin.apply
    [bloom-web]/[prerender-loader]/[webpack]/lib/DefinePlugin.js:51:18

  - index.js:117
    [bloom-web]/[prerender-loader]/src/index.js:117:6

  - new Promise

  - index.js:92 prerender
    [bloom-web]/[prerender-loader]/src/index.js:92:1

  - TypeError: Cannot read property 'compilation' of undefined

  - DefinePlugin.js:51 DefinePlugin.apply
    [bloom-web]/[prerender-loader]/[webpack]/lib/DefinePlugin.js:51:18

  - index.js:117
    [bloom-web]/[prerender-loader]/src/index.js:117:6

  - new Promise

  - index.js:92 prerender
    [bloom-web]/[prerender-loader]/src/index.js:92:1

  - compiler.js:76
    [bloom-web]/[html-webpack-plugin]/lib/compiler.js:76:16

[jesperjohansson]

@JaceHensley Do you use DefinePlugin in your webpack config? Are you running your client using yarn webpack-serve? If yes, does it build if you use just yarn webpack?

[JaceHensley]

Yes I am using that plugin right afterwards. I have the project setup via create-react-app and it has been exported.

Could this be do to using webpack 3.X and html-webpack-plugin 2.X?

[JaceHensley]

And it's served via webpack-dev-server

[jesperjohansson]

@JaceHensley Is prerender-loader.js in the node_nodules/prerender-loader/dist folder?

[JaceHensley]

Yes, after I do yarn && yarn build within node_nodules/prerender-loader/dist

[gujral1997]

I am facing the same issue and unable to fix it. Any progress on this? PS: I am getting Error: Plugin 'jsx' not found when I do yarn build inside node_modules/prerender-loader