I'm trying to develop a website using ASP.NET Core .net 5. When I open *.cshtml file I can see that Razor doesn't work - @using, @model and other directives are not recognized and intellisense doesn't work. When I hover over model I'm given the error from title:

The name 'model' does not exist in current context

@model IEnumerable<Bookstore.Models.Author>
   
<p>
    <a asp-action="Create">Create New</a>
</p>
<table class="table">
    <thead>
        <tr>
            <th>
                @Html.DisplayNameFor(model => model.name)
            </th>
            <th>
                @Html.DisplayNameFor(model => model.id)
            </th>
            <th></th>
        </tr>
    </thead>
    <tbody>
@foreach (var item in Model) {
        <tr>
            <td>
                @Html.DisplayFor(modelItem => item.name)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.id)
            </td>
            <td>
                @Html.ActionLink("Edit", "Edit", new { /* id=item.PrimaryKey */ }) |
                @Html.ActionLink("Details", "Details", new { /* id=item.PrimaryKey */ }) |
                @Html.ActionLink("Delete", "Delete", new { /* id=item.PrimaryKey */ })
            </td>
        </tr>
}
    </tbody>
</table>