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Merged
merged 2 commits into from
Jun 12, 2025
Merged

Update 5.mdx #7635

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967d02d
Update 5.mdx
EvanSanderson Jun 10, 2025
ad684e3
Update 5.mdx
EvanSanderson Jun 10, 2025
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4 changes: 4 additions & 0 deletions src/content/migrate/5.mdx
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Expand Up @@ -292,6 +292,10 @@ Repeat the following steps until you solved at least level 3 or 4:
- 404 errors pointing to URLs containing `auto`
- Not all ecosystem tooling is ready for the new default automatic `publicPath` via `output.publicPath: "auto"`
- Use a static `output.publicPath: ""` instead.
- Cannot read properties of undefined (reading 'call')
- If you see this error during runtime, it may be related to the [ModuleConcatenationPlugin](https://webpack.js.org/plugins/module-concatenation-plugin/). Check if you are using the plugin, and if you've included it in the `plugins` sections of a config, and that config is also set to `production` mode, remove the plugin (ie `new webpack.optimize.ModuleConcatenationPlugin()`) from your plugins list. In webpack 5, the plugin is enabled by default in production mode, and it may get included twice.
- In general, disabling each plugin and testing the build is a good way to triage where the issue might be coming from.
- See: [this issue](https://github.com/webpack/webpack/discussions/15369#discussioncomment-13420496) for more details.

- Level 6: **Deprecation Warnings**.

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