T3001: Contract is not valid JSON

Cause

The <contract> block is not valid JSON. Comments and trailing commas are allowed, but keys must be quoted.

Example

<contract>
{ name: "Card" }
</contract>
<template><div class="root"></div></template>

What you see

ERROR  T3001  app/components/Card.tess:2:3
  Expected a property name in double quotes
  Run `tessera explain T3001` for details.

Fix

Fix the syntax the message points at.

All errors and warnings