Laravel 5.1 - 一般错误:1005无法创建表(mysql)

Question

我正在使用laravel来迁移一些数据,但我在下面有这样的消息:

[Illuminate\Database\QueryException]                                                                                                                                                                
  SQLSTATE[HY000]: General error: 1005 Can't create table 'heinz.#sql-1e83_8' (errno: 150) (SQL: alter table `funcionarios` add constraint funcionarios_supervisor_id_foreign foreign key (`supervis  
  or_id`) references `funcionarios` (`id`))  

我尝试了很多东西,但没有奏效.

这是迁移文件的代码.(相关部分).

Schema::create('funcionarios', function (Blueprint $table) {

//            $table->engine = 'InnoDB';

            $table->increments('id');
            $table->string('nome', 60);
            $table->integer('matricula')->unsigned()->unique();
            $table->bigInteger('pis_pasep')->unsigned()->nullable();
            $table->date('data_admissao')->nullable();
            $table->date('data_demissao')->nullable()->default(null);
            $table->date('data_nascimento')->nullable();
            $table->string('apelido', 20)->nullable();
            $table->integer('supervisor_id')->nullable();
            $table->integer('coordenador_id')->nullable();
            $table->integer('gerente_id')->nullable();
            $table->integer('diretor_id')->nullable();
            $table->integer('sexo_id')->nullable();
            $table->integer('setor_id')->nullable();
            $table->integer('cargo_id');
            $table->integer('turno_id')->nullable();
            $table->timestamps();
        });

        Schema::table('funcionarios', function($table){

            $table->foreign('supervisor_id')->references('id')->on('funcionarios');
            $table->foreign('coordenador_id')->references('id')->on('funcionarios');
            $table->foreign('gerente_id')->references('id')->on('funcionarios');
            $table->foreign('diretor_id')->references('id')->on('funcionarios');
            $table->foreign('sexo_id')->references('id')->on('sexos');
            $table->foreign('setor_id')->references('id')->on('setores');
            $table->foreign('cargo_id')->references('id')->on('cargos');
            $table->foreign('turno_id')->references('id')->on('turnos');

        });

Answer 1

所有外键都必须是未签名的

    $table->integer('supervisor_id')->unsigned()->nullable();
    $table->integer('coordenador_id')->unsigned()->nullable();
    $table->integer('gerente_id')->unsigned()->nullable();
    $table->integer('diretor_id')->unsigned()->nullable();
    $table->integer('sexo_id')->unsigned()->nullable();
    $table->integer('setor_id')->unsigned()->nullable();
    $table->integer('cargo_id')->unsigned();
    $table->integer('turno_id')->unsigned()->nullable();

(来源:http://laravel.com/docs/4.2/schema#foreign-keys)