ASP.NET Core 2 Fails to Publish With Angular 5

I had an issue opened on my Identity Server GitHub repo saying that publishing the client application fails with something like the following error when using server-side rendering.

Can’t resolve ‘./../$$_gendir/ClientApp/app/app.module.browser.ngfactory’

This was only an issue after moving the project to target Angular 5. After some research, it turns out that Angular tools for Webpack has to use a different plugin for ahead of time compiling for Angular 5+. I ended up finding a fix in this issue.

The Fix

In order to resolve the issue, I made the following changes in the webpack.config.js file. The first change is in the require statements at the top of the file.

Before:
const AotPlugin = require('@ngtools/webpack').AotPlugin;

After:
const AngularCompilerPlugin = require('@ngtools/webpack').AngularCompilerPlugin;

Next, make the following replacement in the rest of the file, which should only be two places.

Before:
new AotPlugin

After:
new AngularCompilerPlugin

Wrapping Up

Most of the projects I reference on this blog are written to specifically target the topic I am trying to cover and as such I miss things like testing publish since I’m never going to production with these applications. I really appreciate those of you who find issues and take the time to open an issue on GitHub. Keep them coming, and if you find a solution before I do feel free to submit a pull request.

 


Also published on Medium.

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