Solution1 : chanage your default layout name to Atlas_UI_Resources. then again rename it as earlier.
you can also generate template for pages that are throwing errors
right click on the page and create on page template
and select layout that are existing in your project (like PopupLayout)
you can also delete pages if you don’t have to need ,that are throwing errors.
Hi Ibrahim Sab,
You just Create a layout named popupLayout in Atlas_UI_Resources.
It will fix your errors.