I have two tables A and B
Table A contains the site field, table B contains the site\_id field
I need to link these two tables by site field from table A.

```
            $table->bigInteger("site_id")->unsigned()->index();
            $table->foreign('site_id')
                ->references('site')
                ->on('data_args')
                ->onDelete('cascade');

```

getting this error - MySQL Error 1215: Cannot add foreign key constraint