laravel errno 150 foreign key constraint is incorrectly formed

Question

Can anybody help me to solve this problem?

There are 3 tables with 2 foreign keys:

Schema::create(\'users\', function (Blueprint $table) {
    $table-&         


        

Answer 1

If the reference table primary key is in BigIcrements then Use the BigInteger for foreign key also like below

Table ATable

public function up()
{
    Schema::create('a_tables', function (Blueprint $table) {
        $table->bigIncrements('id');
   }
}

TABLE BTable

public function up()
{
    Schema::create('b_tales', function (Blueprint $table) {
    $table->bigIncrements('id');
    $table->bigInteger('a_tables_id')->unsigned();
     $table->foreign('a_tables_id')->references('id')->on('a_tables')->onDelete('cascade');
   }
}