TypeError: Cannot read property 'existsAt' of undefined

[archseer]

I'm trying to use this with the vue-cli 3.0 build.

vue.config.js

const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
const CompressionPlugin = require('compression-webpack-plugin');
const BrotliPlugin = require('brotli-webpack-plugin');
const { BugsnagSourceMapUploaderPlugin } = require('webpack-bugsnag-plugins');

module.exports = {
  configureWebpack: (config) => {
    if (process.env.NODE_ENV === 'production') {
      return {
        plugins: [
          new BugsnagSourceMapUploaderPlugin({
            apiKey: '<api key>',
            // appVersion: '1.0.0',
          }),
          new CompressionPlugin(),
          new BrotliPlugin(),
          new BundleAnalyzerPlugin({ analyzerMode: 'static' }),
        ],
      };
    }
    return {
      plugins: [
        new BundleAnalyzerPlugin({ openAnalyzer: false }),
      ],
    };
  },
  chainWebpack: (config) => {
    if (process.env.NODE_ENV === 'production') {
      return config.plugins.delete('fork-ts-checker');
    }
    return config;
  },
};

yarn run v1.9.4
$ vue-cli-service build

⠋  Building for production.../<vue project>/node_modules/webpack-bugsnag-plugins/source-map-uploader-plugin.js:54
            map: compilation.assets[map].existsAt,
                                         ^

TypeError: Cannot read property 'existsAt' of undefined
    at maps.map.map (/<vue project>/node_modules/webpack-bugsnag-plugins/source-map-uploader-plugin.js:54:42)
    at Array.map (<anonymous>)
    at chunkToSourceMapDescriptors (/<vue project>/node_modules/webpack-bugsnag-plugins/source-map-uploader-plugin.js:43:21)
    at Array.map (<anonymous>)
    at plugin (/<vue project>/node_modules/webpack-bugsnag-plugins/source-map-uploader-plugin.js:67:39)
    at _err0 (eval at create (/<vue project>/node_modules/tapable/lib/HookCodeFactory.js:32:10), <anonymous>:12:1)
    at callback (/<vue project>/node_modules/copy-webpack-plugin/dist/index.js:126:17)
    at afterEmit (/<vue project>/node_modules/copy-webpack-plugin/dist/index.js:220:13)
    at AsyncSeriesHook.eval [as callAsync] (eval at create (/<vue project>/node_modules/tapable/lib/HookCodeFactory.js:32:10), <anonymous>:7:1)
    at AsyncSeriesHook.lazyCompileHook (/<vue project>/node_modules/tapable/lib/Hook.js:154:20)
    at asyncLib.forEach.err (/<vue project>/node_modules/@vue/cli-service/node_modules/webpack/lib/Compiler.js:355:27)
    at done (/<vue project>/node_modules/neo-async/async.js:2854:11)
    at /<vue project>/node_modules/neo-async/async.js:2805:7
    at /<vue project>/node_modules/graceful-fs/graceful-fs.js:43:10
    at FSReqWrap.oncomplete (fs.js:141:20)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

[archseer]

Could be https://github.com/Izhaki/nodemon-webpack-plugin/commit/8475d3f7c3b9aecedaa2e3af61c77105d94b32c0

[bengourley]

Hey thanks for reporting the issue. I'll get this looked into. We're working on a lot of higher priority stuff right now so it may be a little while. Cheers!

[archseer]

So I've narrowed down what happens. Vue by default generates sourcemaps for only js, skipping css. This plugin is trying to upload both. Maybe it should skip anything not ending in ".js"?

[alanaasmaa]

Same issue here. I'm using Nuxt.js

 ERROR  Cannot read property 'existsAt' of undefined                                                                                                                                                                             09:20:48

  at maps.map.map (node_modules/webpack-bugsnag-plugins/source-map-uploader-plugin.js:53:48)
  at Array.map (<anonymous>)
  at chunkToSourceMapDescriptors (node_modules/webpack-bugsnag-plugins/source-map-uploader-plugin.js:43:21)
  at Array.map (<anonymous>)
  at plugin (node_modules/webpack-bugsnag-plugins/source-map-uploader-plugin.js:67:39)
  at _err0 (eval at create (node_modules/tapable/lib/HookCodeFactory.js:32:10), <anonymous>:19:1)
  at reportBuild.then.catch (node_modules/webpack-bugsnag-plugins/build-reporter-plugin.js:20:11)
  at process._tickCallback (internal/process/next_tick.js:68:7)

[markbrouch]

@bengourley

Hey thanks for reporting the issue. I'll get this looked into. We're working on a lot of higher priority stuff right now so it may be a little while. Cheers!

Eagerly awaiting this fix. Seems this plugin is unusable for Vue apps in the meantime.

[sarink]

I had this happen when my entry file was incorrect, double check it!