Webpack Compilation error

[smile18]

Getting below error while compiling ...

WARNING in ./~/source-map-support/source-map-support.js Module not found: Error: Can't resolve 'module' in 'D:\WebStormWork\myapp\node_modules\source-map-support' @ ./~/source-map-support/source-map-support.js 474:15-32 @ ./~/bunyan/lib/bunyan.js @ ./~/ldapjs/lib/index.js @ multi webpack-dev-server/client webpack: Compiled with warnings.

[ChrisProlls]

Same as me, any ideas ?

[ordinaryorange]

I had the same error, but was able to remove the package depending on source-map-support, which then got rid of it. @smile18 If you cant remove bunyan what happens if you add the source-map-support package ?

[bzalasky]

It appears to be caused by these lines (~470 in source-map-support.js)...

if (options.hookRequire && !isInBrowser()) {
    var Module;
    try {
        Module = require('module');
    } catch (err) {
    // NOP: Loading in catch block to convert webpack error to warning.
    ...
}

Perhaps webpack 2 is treating this differently than webpack 1 did?

[jscinoz]

Webpack 2/3 will attempt to parse any and all ES dynamic import() / CommonJS require() calls present in input files. When the Webpack build is has target: web, neither module nor fs will be available, hence the require calls for each of these will fail to resolve and Webpack will fail the build.

To work around this, you can set node.fs and node.module both to "empty" in your Webpack configuration, e.g:

{
  /* Other configuration keys */
  node: {
    fs: "empty",
    module: "empty",
  }
}

[Ventzy]

Any idea how to do that in angular-cli (without ng eject)?

[raed667]

up?

[ramiy]

Had the same issue:

warning  in ./node_modules/vue-monaco/node_modules/monaco-editor/esm/vs/editor/common/services/editorSimpleWorker.js

Critical dependency: the request of a dependency is an expression


warning  in ./node_modules/source-map-support/source-map-support.js

Module not found: Error: Can't resolve 'module' in '.\node_modules\source-map-support'

Solved with Webpack configure mentioned above:

node: {
  fs: 'empty',
  module: 'empty',
},

Thanks @jscinoz !!!

[JSONRice]

Yeah this is an issue for me as well. Please fix your software @evanw

[LinusU]

Please fix your software

Would be happy to accept a pull request to fix this @jasonwr ☺️

[JSONRice]

@LinusU I'm strapped for time at the moment. Lots of coding these days. Also I'd have to ramp up on the internals of this package before being able to submit a defect free PR.