Buenas estoy tratando de hacer relaciones de muchos de muchos a uno y muchos a muchos pero me sale codigo error 150 les muestro las tablas y los modelos

tabla user:

1class CreateUsersTable extends Migration
2{
3    /**
4     * Run the migrations.
5     *
6     * [@return](https://ed.team/return) void
7     */
8    public function up(https://)
9    {
10        Schema::create(https://'users', function (Blueprint $table) {
11            $table->id(https://);
12            $table->string(https://'name');
13            $table->string(https://'email')->unique(https://);
14            $table->timestamp(https://'email_verified_at')->nullable(https://);
15            $table->string(https://'password');
16            $table->rememberToken(https://);
17            $table->timestamps(https://);
18            $table->integer(https://'id_rol')->unsigned(https://);
19            $table->foreign(https://'id_rol')->references(https://'id')->on(https://'rols');
20        });
21    }
22}

Tabla rols, producto y operaciones son los mismos campos pero con diferente nombre. asi que emito sus tablas oslo colocare una para visualizar las tabla

1class CreateRolsTable extends Migration
2{
3    /**
4     * Run the migrations.
5     *
6     * [@return](https://ed.team/return) void
7     */
8    public function up(https://)
9    {
10        Schema::create(https://'rols', function (Blueprint $table) {
11            $table->id(https://);
12            $table->string(https://'name');
13            $table->timestamps(https://);
14        });
15    }
16}

Estas es la tabla intermedia donde referencio las tres tablas rol, operaciones y productos

1class OperacionesProductoRol extends Migration
2{
3   /**
4    * Run the migrations.
5    *
6    * [@return](https://ed.team/return) void
7    */
8   public function up(https://)
9   {
10       //
11       Schema::create(https://'OperacionesProductoRol', function (Blueprint $table){
12           $table->id(https://);
13           $table->integer(https://'id_rol')->unsigned(https://)->nullable(https://);
14           $table->integer(https://'id_operaciones')->unsigned(https://)->nullable(https://);
15           $table->integer(https://'id_productos')->unsigned(https://)->nullable(https://);
16           $table->foreign(https://'id_rol')->references(https://'id')->on(https://'rols');
17           $table->foreign(https://'id_operaciones')->references(https://'id')->on(https://'operaciones');
18           $table->foreign(https://'id_productos')->references(https://'id')->on(https://'productos');
19       });
20   }
21}

Modelo user

public function rol(https://){
        return $this->hasOne(https://'App\Rol');
    }

Rol :

1 public function user(https://){
2        return $this->belongsToMany(https://'App\User');
3    }
4    public function producto(https://){
5        return $this->belongsToMany(https://'App\Producto');
6    }
7
8    public function operaciones(https://){
9        return $this->belongsToMany(https://'App\Operaciones');
10    }

Producto

1public function rol(https://){
2        return $this->belongsToMany(https://'App\Roll');
3    }
4
5    public function operaciones(https://){
6        return $this->belongsToMany(https://'App\Operaciones');
7    }

Modelo de operaciones

1public function producto(https://){
2        return $this->belongsToMany(https://'App\Producto');
3    }
4
5    public function rol(https://){
6        return $this->belongsToMany(https://'App\Rol');
7    }