Cannot find Parcel plugin "@parcel/transformer-image"

[lgarron]

🐛 bug report

Installing the latest nightly version Parcel breaks importing images.

🎛 Configuration (.babelrc, package.json, cli command)

https://github.com/cubing/cubing.js/blob/main/package.json

🤔 Expected Behavior

The project builds.

😯 Current Behavior

      /Users/lgarron/Code/git/github.com/cubing/cubing.js/node_modules/@parcel/config-default/index.json:38:35
  37 |     "custom:*.vue": ["@parcel/transformer-vue"],
> 38 |     "url:*.{png,jpg,jpeg,webp}": ["@parcel/transformer-image"],
>    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Cannot find module "@parcel/transformer-image", did you mean "@parcel/transformer-babel"?
  39 |     "url:*": ["@parcel/transformer-raw"]
  40 |   },

💁 Possible Solution

It seems the image transformer is not installed in node_modules by default; perhaps it should be?

🔦 Context

I was trying to upgrade our Parcel version to see if potential fixes for other bugs are stable.

(Such as #3481. That one may be fixed, but while trying to create a minimal repro with Parcel 2.0.0-nightly.643... I ran into another infinite rebuild loop.)

💻 Code Sample

git clone https://github.com/cubing/cubing.js
cd cubing.js
git checkout a503e30ca3743742f2ef782898a51207e2c44504
npm install
npm install parcel@nightly
make dev

I'm sorry, I was unable to make a small repro.

🌍 Your Environment

Software	Version(s)
Parcel	2.0.0-nightly.643+3baf990a
Node	v15.12.0
npm/Yarn	7.6.3
Operating System	macOS 11.2.3

[DeMoorJasper]

It's a very large dependency and a lot of people complain about install size so we've added something called parcelDependencies to config packages so it can be installed later and still match a certain version.

See https://github.com/parcel-bundler/parcel/blob/v2/packages/configs/default/package.json#L53

So you do need to install it manually, although it should install automatically in dev if I'm not mistaken.

[mischnic]

automatically in dev

It should always autoinstall, except for CI. (So both parcel serve and parcel build)

[lgarron]

Ah, that would explain it. We use --no-autoinstall.

[lgarron]

Ah, that would explain it. We use --no-autoinstall.

It would be really nice if Parcel could warn that something is failing because of a required dependency that would be auto-installed.

I regularly work around Parcel issues and use --no-autoinstall to keep the build process more predictable (e.g. so that it will work the the same on anyone's computer and offline), and a descriptive error message would have been really useful here.

[lgarron]

(How do I mark this discussion as answered?)

[mischnic]

It would be really nice if Parcel could warn that something is failing because of a required dependency that would be auto-installed.

-> #6165

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