Closure::fromCallable(ar...($this, 'getContents')) of type Closure is incompatible with the type array expected by parameter $fx of atk4\ui\VirtualPage::set().
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Ignorable by Annotation
)
If this is a false-positive, you can also ignore this issue in your code via the ignore-type annotation
array(new Epesi\Core\Sys...1', 'icon' => 'user'))) of type array<integer,Epesi\Core...stem\View\LaunchButton> is incompatible with the type atk4\ui\View expected by parameter $object of atk4\ui\View::add().
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Ignorable by Annotation
)
If this is a false-positive, you can also ignore this issue in your code via the ignore-type annotation
The method link() does not exist on atk4\ui\AbstractView. It seems like you code against a sub-type of atk4\ui\AbstractView such as atk4\ui\View.
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Ignorable by Annotation
)
If this is a false-positive, you can also ignore this issue in your code via the ignore-call annotation