Getting php error when adding App\Providers\VoltServiceProvider::class in my project

[polodev]

I have upgraded to livewire 3 from livewire 2. having a lot of livewire component
Want to use Volt.
But getting error in regular page/livewire page while adding App\Providers\VoltServiceProvider::class in config/app.php providers array.
Normal error like Undefined variable. Despite being variable defined.
for Example:
In a blade file I assigned a variable $hello = 'world'.
In very next line I am printing echo $hello.
Output undefined variable $hello.
just after adding App\Providers\VoltServiceProvider::class class.
If I comment/delete this provider from provider array everything working as expected