编译器错误C2398缩小转换

Question

因此，我已经看过几次这个任务，并且尝试用static_cast（width）和static_cast（高度）包装它，但是它只是产生相同的错误，我不太确定为什么在我看来它int float甚至不需要一个缩小转换。我目前正在学习IMGUI，并且在编译时会遇到此错误 错误C2398元素'1'：从“ const int”到“ float”的转换需要缩小转换

这是我的代码

constexpr int WIDTH = 500; 
constexpr int HEIGHT = 300;

}
//it is referenced later in this line in a different file that DOES include the header

void gui::Render() noexcept
{
ImGui::SetNextWindowSize({ WIDTH, HEIGHT });
}

//I have attempted to do a simple float conversion but it still screams at me with the same error