Laravel错误：在null上调用成员函数store（）

Question

When I tried to send any file I get this message

It's form in home.blade.php

<form action="{{ URL::to('/upload') }}" enctype="multipart/form-data" method="post">
      <input type="file" name="something" >
      {{ csrf_field() }}
      <button type="submit" name="button">Upload</button>
</form>

It's function inside a Controller

public function store(Request $request)
{
    $path = $request->file('something')->store('upload');
    echo $path;
}

Answer 1

Try to change controller code like this and see the result:

public function store(Request $request) {
$path = $request->something;
echo $path;  }