title: adonis issue: error: `migration:run` is not a registered command
body: <p><strong>I Have installed @adonisjs/lucid.
  create a migration to use command</strong> </p>
  
  <blockquote>
    <p>adonis make:migration task</p>
  </blockquote>
  
  <p>** task code**</p>
  
  <pre><code>'use strict'
  
  const Schema = use('Schema')
  
  class TaskSchema extends Schema {
    up() {
      this.create('tasks', table =&gt; {
        table.increments()
        table.timestamps()
        table.string('name')
        table.text('description')
        table.integer('project_id').unsigned()
        table
          .foreign('project_id')
          .references('projects.id')
          .onDelete('cascade')
      })
    }
  
    down() {
      this.drop('tasks')
    }
  }
  
  module.exports = TaskSchema
  </code></pre>
  
  <p><em>i have run my migration to show this error</em> </p>
  
  <pre><code>error: `migration:run` is not a registered command
  </code></pre>
  
  <p>**</p>
  
  <blockquote>
    <p>i have not understand this bug. I know that if not install the
    dependencies  @adonisjs/lucid than show this error but After I
    installed dependencies  why the error occurred</p>
  </blockquote>
  
  <p>**</p>