I have tried almost every possibility but Email Validation is not working in form validation and it takes to MySQL exception of unique email required.
public function rules()
{
return [
'email'=>"required|email|unique:users,email",
'password' => "required|min:6",
'first_name' => "required",
'last_name'=>"required",
'country'=>"required",
'city'=>"required",
'is_willing_to_relocate'=>"required",
'min_gross_salary'=>"required|integer|min:0",
'max_gross_salary'=>"required|integer|min:0",
'skills'=>'required|json|objCount',
'languages'=>'required|json|objCount',
'professions'=>'required|json|objCount',
'cities'=>'required_if:is_willing_to_relocate,yes|json|objCount'
];
}