[Error Icon]: error icon on the error message left side

[felix0324324]

Is there an existing issue for this?

• I have searched the existing issues

Package/Plugin version

9.1.0

What you'd like to happen

How can I add an "error icon" to the error message on the left side when I am using "form_builder_validators" just like the uploaded photo?? 
Thankyou so much.

Alternatives you've considered

No response

Aditional information

[deandreamatias]

Currently can't do it, because flutter_form_builder use errorText.

You have two alternatives:

1. Create your own form field
2. Move the error icon to suffix, like that

FormBuilderTextField(
  autovalidateMode: AutovalidateMode.always,
  name: 'age',
  decoration: InputDecoration(
    labelText: 'Age',
    suffixIcon: _ageHasError
        ? const Icon(Icons.error, color: Colors.red)
        : const Icon(Icons.check, color: Colors.green),
  ),
  onChanged: (val) {
    setState(() {
      _ageHasError =
          !(_formKey.currentState?.fields['age']?.validate() ??
              false);
    });
  },
  // valueTransformer: (text) => num.tryParse(text),
  validator: FormBuilderValidators.compose([
    FormBuilderValidators.required(),
    FormBuilderValidators.numeric(),
    FormBuilderValidators.max(70),
  ]),
),