运行php artisan migrate时为什么会出现SQLSTATE [42501]错误？

I just don't understand for the life of me how this error's happening upon running php artisan migrate after creating a new table.

I've searched the web and SO and tried every single suggestion out there (like php artisan migrate:fresh) but nothing seems to be working.

What can I do to rectify this problem as this is holding me up big time?

SQLSTATE[42S01]: Base table or view already exists: 1050 Table 
'posts' already exists (SQL: create table `posts` (`id` bigint 
 unsigned not null auto_increment primary key, `user_id` int 
 unsigned not null, `body` varchar(140) not null, `created_at` 
 timestamp null, `updated_at` timestamp null) default character set 
 utf8mb4 collate 'utf8mb4_unicode_ci')

Migration:

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreatePostsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('posts', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->integer('user_id')->unsigned();
            $table->string('body', 140);
            $table->timestamps();

            $table->foreign('user_id')->references('id')->on('user')->onDelete('cascade');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('posts');
    }
}

Please drop the tables before running the migrate command or try php artisan migrate:fresh command.