This error does not prove a missing npm package.It proves create() found no client-modules factory in the browser registration queue.

Route one immutable page load.

HTML

injection rows

Network

exact combo URL

Bytes

registration id

Order

before shell create

Recover without destroying user state.

Do not delete Sessions, models, credentials, or workspaces.

Restore a consistent Host-generated HTML and bootstrap bundle generation; those application records are not the boot registration.

Primary evidence.

Keep the complete diagnostic.

The canonical runbook covers direct capture commands, eight failure routes, mixed-generation caches, safe recovery, and ten regression gates.

Read the full runbook