Attempt to read property "name" on array (Select with Livewire) - laravel

Question

I'm trying to make a dependent select with Livewire.
My problem is that when I load the second select, it loads it without problems, but when I select an option from the second select, it throws me this error.
Attempt to read property "nombre" on array
select template
<div class="container">
<div class="row mb-3">
<div class="col-4">
<label class="form-label">Tipo de Inscripcion</label>
<select wire:model="selectedTipoInscripcion" class="form-select">
<option selected>Seleccionar ...</option>
#foreach($tipoInscripcion as $tipo)
<option value="{{ $tipo -> id }}">{{ $tipo -> nombre}}</option>
#endforeach()
</select>
</div>
#if(!is_null($tipoPrograma))
<div class="col-4">
<label class="form-label">Tipo de Programa</label>
<select wire:model="selectedTipoPrograma" class="form-select">
<option selected>Seleccionar ...</option>
#foreach($tipoPrograma as $tipo)
<option value="{{ $tipo -> id}}">{{ $tipo -> nombre}}</option>
#endforeach()
</select>
</div>
#endif
</div>
</div>
The problem is in
<option value="{{ $tipo -> id}}">{{ $tipo -> nombre}}</option>
My Component
<?php
namespace App\Http\Livewire;
use App\Models\Curso;
use App\Models\Programa;
use Livewire\Component;
class SelectAnidado extends Component
{
public $selectedTipoInscripcion = null, $selectedTipoPrograma = null, $SelectedProgrCur = null;
public $tipoPrograma = null, $progrCur = null, $sw = null;
public function render()
{
$programa = (object) ['id' => 1, 'nombre' => 'Programa'];
$curso = (object) ['id' => 2, 'nombre' => 'Curso'];
$ti = collect([$programa, $curso]);
return view('livewire.select-anidado', [
'tipoInscripcion' => $ti
]);
}
public function updatedselectedTipoInscripcion($id)
{
if ($id == 1) {
$doctorado = (object) ['id' => 1, 'nombre' => 'doctorado'];
$maestria = (object) ['id' => 2, 'nombre' => 'maestria'];
$especialidad = (object) ['id' => 3, 'nombre' => 'especialidad'];
$diplomado = (object) ['id' => 4, 'nombre' => 'diplomado'];
$this->tipoPrograma = collect([$doctorado, $maestria, $especialidad, $diplomado]);
}
}
}
It tells me that I am trying to access an array as if it were an object.
But then the error should also appear when the is loaded.
Why does it only appear when I make the selection?

Answer 1

I think problem is here :
$this->tipoPrograma = collect([$doctorado, $maestria, $especialidad, $diplomado]);
you're passing array in tipoPrograma, and each variables is array too.