Problem with annotations namespaces when trying to guess form field type

[clabra]

If field type isn't set in Form/MyEntityType.php:

public function buildForm(FormBuilder $builder, array $options) 
  { 
      $builder 
          ->add('text')

Next exception is thrown when trying to guess type:
[Semantical Error] The annotation "@table" in class Entity\MyEntity was never imported. Did you maybe forget to add a "use" statement for this annotation?

If you put:
->add('text', 'textarea')
exception is not thrown

[stof]

Fix your annotations. You need to import the annotation class through a use statement (or the parent namespace and changing it to @ORM\Table() if you prefer avoiding having lots of the use statements)
It is not directly related to the form. It is simply that the guesser is a place triggering the annotation reader.