File size validation laravel 5.3

Why do I get the error message validation.uploaded instead of proper error message on validating the size of an image. Following is the rule I am using for validation.

'file' => 'required|max:1024|dimensions:max_width=275,min_width=200,height=75'

For dimensions the message is ok. But, the message for validating the size (KB) is displaying weird message.

via Chebli Mohamed