Error when to attach a file to User Model

[AEK-BKF]

Hi,

I get this error message when I tried to attach an image to a user,
Here my code :

$avatar = $admin->attach(public_path().'/BKF/DzErpTheme/img/default-avatar.png',[
            'disk' => 'media',
            'title' => 'avatar',
            'description' => 'default avatar',
            'key' => 'avatar'.$admin->id,
        ]);

and here the error :

FatalThrowableError in Uuid.php line 66: Call to undefined function Bnb\Uuid\bcadd()

Please check it.

[gabsource]

bcadd is provided by php-bcmath extension. You can enable the extension or use a different generator via the configuration item uuid_provider (must be a globally available function or a static from a class in the form Name\Space\Class@method).

[AEK-BKF]

Where can I enable the extension ?
I'm on ubuntu 16.04 , mariadb, php 7, Laravel 5.4

[gabsource]

If not already installed you need to install the extension package. I presume something like php7.0-bcmath. If the extensions is installed php7enmod bcmath will enable it (with sudo if not root).

Search for tutorials or howto, you'll easily find one for your system.

[Pes8]

Maybe the dependencies should be written in the readme ? Because I also got this error in a fresh LAMP installation (and now I've installed the extension)

[gabsource]

Thanks for reporting this. The extension dependency has been added here bnbwebexpertise/php-uuid@bab3be7

Now it should throw an error when trying to install on a PHP setup without the extension.