Lumen FatalThrowableError on validation

I've been struggling with this for a while now.
Here's the code I've got.

> public function store(Request $request)
{
$validator = Validator::make($request->all(), [
'name' => 'required|max:100'
]);
if ($validator->fails()) {
//do something
}
}

The problem is that I get a FatalThrowableError right in my face with the following message:

> Call to a member function parameter() on array

I can't find what I'm doing wrong. I'd appreciate some help here.
And also, I've had this validation before which worked:

$this->validate($request, [
'name' => 'required|unique:developers|max:100'
]);
But the thing with this one is, I had no idea how to catch when the validation failed. Is it possible to catch the validation fail when using it this way?

Using version: "laravel/lumen-framework": "5.2.*"

A `FatalThrowableError` exception is low level exception that is thrown typically by the symfony debug `ErrorHandler`. In lumen the queue worker, PhpEngine, console kernel and routing pipeline uses it as well.

Make sure of the following

1. That you have copied `.env.example` to `.env`
2. If you are using Facades, make sure that you enabled it inside `bootstrap/app.php` by uncommenting the line.

`$app->withFacades();`

Inside Lumen 5.2.8 either of the following would work.

The following will actually return a valid JSON object with the errors. You did not elaborate on your use case why that is not sufficient. What is nice with using the `validate` call like this is it actually returns a `422` http status code, which implies an unprocessed entity.

<!-- language: php -->

$app->get('/', function (Request $request) {
$this->validate($request, [
'name' => 'required'
]);
});

Using the facade works as well, albeit is returns a `200` status code.

<!-- language: php -->

$app->get('/', function (Request $request) {
$validator = Validator::make($request->only(['name']), [
'name' => 'required'
]);

if ($validator->fails()) {
return ['error' => 'Something went wrong'];
}
});

If you still do not come right with the `Validator::make` you can catch the default Validation exception using. It feels a little hacky.

<!-- language: php -->

$app->get('/', function (Request $request) {
try {
$this->validate($request, [
'name' => 'required'
]);
} catch (\Illuminate\Validation\ValidationException $e) {
// do whatever else you need todo for your use case
return ['error' => 'We caught the exception'];
}
});