XF 2.0 getting error while extending the member class dev doc

[lovnesh]

ErrorException: [E_WARNING] Declaration of Demo\XF\Pub\Controller\Member::actionIndex() should be compatible with XF\Pub\Controller\Member::actionIndex(XF\Mvc\ParameterBag $params) in src\addons\Demo\XF\Pub\Controller\Member.php at line 13

1. XF::handlePhpError() in src\vendor\composer\ClassLoader.php at line 444
2. include() in src\vendor\composer\ClassLoader.php at line 444
3. Composer\Autoload\includeFile() in src\vendor\composer\ClassLoader.php at line 322
4. Composer\Autoload\ClassLoader->loadClass()
5. spl_autoload_call()
6. class_exists() in src\XF\Extension.php at line 172
7. XF\Extension->extendClass() in src\XF\App.php at line 2406
8. XF\App->extendClass() in src\XF\App.php at line 1275
9. XF\App->XF\{closure}() in src\XF\Container.php at line 228
10. XF\Container->create() in src\XF\App.php at line 2361
11. XF\App->controller() in src\XF\Mvc\Dispatcher.php at line 211
12. XF\Mvc\Dispatcher->dispatchClass() in src\XF\Mvc\Dispatcher.php at line 88
13. XF\Mvc\Dispatcher->dispatchLoop() in src\XF\Mvc\Dispatcher.php at line 41
14. XF\Mvc\Dispatcher->run() in src\XF\App.php at line 1931
15. XF\App->run() in src\XF.php at line 328
16. XF::runApp() in index.php at line 13

 

[S Thomas]

Add a
use XF\Mvc\ParameterBag;
after your namespace declaration.

 

[hemant_bhardwaj]

Add a
use XF\Mvc\ParameterBag;
after your namespace declaration.

well i got the same issue but it's doesn't solve it.

 

[S Thomas]

Change actionIndex() to actionIndex(XF\Mvc\ParameterBag $params) then. Otherwise, provide your code.

 

[Lukas W.]

I heavily recommend switching your IDE. A good IDE will point you out this problem and offer a solution for it in addition in a heartbeat.

Generally you have to make sure that your extending function uses the same signature (argument types) and the same privacy as the parent.