Two File Uploads Within a Form

Hey all, I have a simple form written to accept a date and two files and store them in a database. The database has fields for an id, a date, two filepaths(varchar), and the standard created/updated timestamps. My page follows the basic CRUD model/functions. When I go to submit my form to create a new entry, I get the error: ** Unable to guess the mime type as no guessers are available (Did you enable the php_fileinfo extension?)** The 'problem' line is : 'agendaPath' => $request->file('agenda')->store('uploads')which should both store the file in a folder called uploads and save the filepath to the "agendaPath" field in the DB.

I have my php_fileinfo extension enabled in my php install, so I'm not sure how to resolve this. My form/view looks like:

    <form action="/agendas" method="post" enctype="multipart/form-data">
    {{ csrf_field() }}
    <div class="form-group">
      <label for="meetingDate">Meeting Date</label>
      <input type="date" class="form-control" name="meetingDate">
    </div>
    <div class="form-group">
      <label for="agenda">Agenda File</label>
      <input type="file" class="form-control" name="agenda">
    </div>
    <div class="form-group">
      <label for="minutes">Minutes File</label>
      <input type="file" class="form-control" name="minutes">
    </div>
     <input type="submit" class="btn btn-primary">

My Route looks like:

Route::resource('/agendas', 'AgendasController');

My Model looks like:

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Agenda extends Model
{
  protected $table = 'agendas';

  protected $dates = ['date', 'created_at', 'updated_at'];

  protected $fillable = ['date' , 'agendaPath', 'minutesPath', 'canceled'];
}

And the function from my controller is:

public function store(Request $request)
  {
      $request->validate([
          'meetingDate' => 'required',
          'agenda' => 'required',
          'minutes' => 'required'
      ]);

      $agenda = Agenda::create([
        'meetingDate' => $request->date,
        'agendaPath' => $request->file('agenda')->store('uploads'),
        'minutesPath' => $request->file('minutes')->store('uploads')
      ]);
      return redirect('/agendas/'.$agenda->id);
  }

I'd appreciate any insight you all have. Thanks!