It throws an error saying it didn't find the view in parent view. Maybe i'm defining it in the wrong file, where do you think i should define this?

may be this error because of parent menu.

and this code is define in your xml file where you define your menu item.

below check you define like

<menuitem name="Rental Management" id="rental_management" web_icon="rental,static/description/icon.png"/>

In above code this is your main menu and your below code is your child menu.

<menuitem name="Record" id="menu_record_rental" parent="rental_management" sequence="1"/>

Hi Manish,

Thank you for you answer, I have tried this but still the logo image was not displaying in app modules screen.

Can you share your code ?

I got the issue cleared, it was a stupid mistake though. Thanks for your timely reply :)

The issue was i was using windows and the png file extension was in caps like PNG, now in windows it didn't matter but Linux didn't accept it so changing it lowercase solved it.