Webpack default entry issue: webpackConfig.entry.main.unshift is not a function. #1640

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fergalmoran · 2025-08-09T17:21:04Z

fergalmoran commented

2025-08-09 17:21:04 +00:00

Originally created by @laskoviymishka on 4/29/2016

There is a statement inside of webpack dev middleware ts:
webpackConfig.entry['main'].unshift('webpack-hot-middleware/client');

Beside assuming that we have default main entry (which is not really good, but there is already TODO here), this allso assume that entry point is an array. Webpack is allow to you have this entry as a string.
Webpack ng2 starter as example have following config:
entry: { 'polyfills': './src/polyfills.ts', 'vendor': './src/vendor.ts', 'main': './src/main.browser.ts' },
In this scenario you will have error:
webpackConfig.entry.main.unshift is not a function.

*Originally created by @laskoviymishka on 4/29/2016* There is a statement inside of webpack dev middleware ts: `webpackConfig.entry['main'].unshift('webpack-hot-middleware/client');` Beside assuming that we have default main entry (which is not really good, but there is already TODO here), this allso assume that entry point is an array. Webpack is allow to you have this entry as a string. Webpack ng2 starter as example have following config: `entry: { 'polyfills': './src/polyfills.ts', 'vendor': './src/vendor.ts', 'main': './src/main.browser.ts' },` In this scenario you will have error: webpackConfig.entry.main.unshift is not a function.

fergalmoran closed this issue

2025-08-09 17:21:04 +00:00

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Reference: github/JavaScriptServices#1640