logseq-emoji-picker doesn't build: @parcel/core: Failed to resolve '@joeattardi/emoji-button' from './index.ts'

npm install && npm run build
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> logseq-emoji-picker@0.0.1 build
> parcel build --public-url . --no-source-maps index.html

🚨 Build failed.

@parcel/core: Failed to resolve '@joeattardi/emoji-button' from './index.ts'

  /home/dieter/code/logseq-plugin-samples/logseq-emoji-picker/index.ts:2:29
    1 | import '@logseq/libs'
  > 2 | import { EmojiButton } from '@joeattardi/emoji-button'
  >   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
    3 | 
    4 | /**

Start in logseq-emoji-picker/index.ts at the import reported by Parcel, then run npm install && npm run build to reproduce the failure. Check the project's dependency configuration and verify that the declared package can be resolved; done means the sample builds successfully without the reported Parcel error.