Webpack 5 caching not working (No serializer registered for IncludeDependency/AureliaDependency)

[glen-84]

I'm submitting a bug report

• Library Version: 5.0.3

Please tell us about your environment:

• Operating System: Debian

• Node Version: v14.18.2

• NPM Version: 6.14.15

• JSPM OR Webpack AND Version webpack: 5.65.0 webpack-cli: 4.9.1 webpack-dev-server 4.6.0

• Browser: n/a

• Language: TypeScript 4.5.3

Current behavior:

Running a build with the following webpack cache configuration:

        cache: {
            type: "filesystem",
            buildDependencies: {
                config: [__filename]
            }
        }

I get many warnings like:

<w> [webpack.cache.PackFileCacheStrategy] Skipped not serializable cache item 'Compilation/modules|/home/glen/development-environment/Projects/Crew Panel/node_modules/ts-loader/index.js??ruleSet[1].rules[6].use[0]!/home/glen/development-environment/Projects/Crew Panel/src/app/resources/elements/gg-sort-link.ts': No serializer registered for IncludeDependency
<w> while serializing webpack/lib/cache/PackFileCacheStrategy.PackContentItems -> webpack/lib/NormalModule -> Array { 16 items } -> IncludeDependency
<w> [webpack.cache.PackFileCacheStrategy] Skipped not serializable cache item 'Compilation/modules|/home/glen/development-environment/Projects/Crew Panel/node_modules/ts-loader/index.js??ruleSet[1].rules[6].use[0]!/home/glen/development-environment/Projects/Crew Panel/src/app/view-models/app.ts': No serializer registered for AureliaDependency
<w> while serializing webpack/lib/cache/PackFileCacheStrategy.PackContentItems -> webpack/lib/NormalModule -> Array { 182 items } -> AureliaDependency

Expected/desired behavior:

• What is the expected behavior?

Support for webpack 5 caching / no warnings.

• What is the motivation / use case for changing the behavior?

Performance / clean output.

[elitastic]

I've exactly the same problem!

[elitastic]

https://github.com/webpack/changelog-v5/blob/master/guides/persistent-caching.md#serialization

Is this part missing? Do we have to register serialization handlers for au components?

[bigopon]

@elitastic yes it is missing. I wasn't aware of this necessity while migrating. Haven't been able to come back to this yet.