npm run migrate : cannot migrate models not attached to this datasource, while having model sequencing in migrate.ts

• Visited https://loopback.io/doc/en/lb4/todo-list-tutorial-sqldb.html - #link1
  -Visited https://loopback.io/doc/en/lb4/MySQL-connector.html - #link2

Steps to reproduce

1. Intstall @loopback/authentication @loopback/authentication-jwt extensions

2. Suppose you are using Relational database, using the constraints as foreign keys, so you to sequence the model in migrate.ts as guided on #link1 above like
   models:[...model, ...relatedmodel]
   **Note if you dont have key constraints and this model sequencing, it work fine. no error

3. Then bind the authentication-jwt datasource in to your application.ts
   this.datasource(YourDbDatasource, UserServiceBindings.DATASOURCE_NAME)

4. when you run migrate.
   `

npm run clean
npm run build
npm run migrate
`

Error Come in action
Cannot migrate database schema Error: Cannot migrate models not attached to this datasource:

Beginne mit migrate.ts und application.ts und reproduziere dann den gemeldeten Fehler mit npm run clean, npm run build und npm run migrate, nachdem du die authentication-jwt datasource gebunden hast. Verfolge, warum die sequenzierten Modelle als nicht angehängt gemeldet werden, und betrachte das Issue als erledigt, sobald die dokumentierte relational-model-Einrichtung ohne diesen Fehler migriert wird.