Cannot add foreign key constraint - Laravel Migration Error

I have multiple migrations but the two which I think are relevant to this question are the 'job' and 'session' migrations.

Job Migration

    Schema::create('job', function (Blueprint $table) {
        $table->bigIncrements('id');
        $table->string('name');
        $table->timestamps();
    });

Sessions Migration:

    Schema::create('session', function (Blueprint $table) {
        $table->bigIncrements('id');
        $table->unsignedBigInteger('user_id');
        $table->unsignedBigInteger('group_id');
        $table->unsignedBigInteger('job_id');
        $table->boolean('verified')->default(0);
        $table->date('date');
        $table->time('start_time');
        $table->time('end_time');
        $table->string('session_type');
        $table->timestamps();

        $table->foreign('user_id')->references('id')->on('users');
        $table->foreign('group_id')->references('id')->on('group');
        $table->foreign('job_id')->references('id')->on('job');
    });

Now the error I get when I make migration is:

SQLSTATE[HY000]: General error: 1215 Cannot add foreign key constraint (SQL: alter table session add constraint session_job_id_foreign foreign key (job_id) references job (id))

Database: MySQL

I don't understand what the issue is here. This approach has always worked for me, even in this current Laravel project.

via Chebli Mohamed