Class 'Nette\Diagnostics\Debugger' not found

[zemnet]

Hi,
I want to use this component on nette 2.4 with php 7.1.

Redirect to google work fine, but returns to page stop with error:
Class 'Nette\Diagnostics\Debugger' not found

google/apiclient v.1.1.8
kdyby/google @dev

Can you help how to use it on v2.4?

exception--2017-10-29--10-57--07b981b1da.zip

[zemnet]

Temporary repaired in SessionStorage.php from line 14:
//use Nette\Diagnostics\Debugger;
use Tracy\Debugger;

if (!class_exists('Nette\Diagnostics\Debugger')) {
class_alias('Tracy\Debugger', 'Nette\Diagnostics\Debugger');
}`